diff --git a/backend/app/models.py b/backend/app/models.py
index 469448c..4107db3 100644
--- a/backend/app/models.py
+++ b/backend/app/models.py
@@ -156,6 +156,5 @@ class LogisticsEvent(Base):
     slot_id = Column(Integer, ForeignKey('slots.id'))   # corrected table name
     event_type = Column(String, index=True)
     timestamp = Column(DateTime, default=datetime.utcnow)
-    action_details = Column(String)
     dewar = relationship("Dewar", back_populates="events")
     slot = relationship("Slot", back_populates="events")
\ No newline at end of file
diff --git a/backend/app/routers/logistics.py b/backend/app/routers/logistics.py
index f38f5d2..c98e792 100644
--- a/backend/app/routers/logistics.py
+++ b/backend/app/routers/logistics.py
@@ -103,7 +103,6 @@ async def refill_dewar(qr_code: str, db: Session = Depends(get_db)):
         slot_id=None,
         event_type="refill",
         timestamp=now,
-        action_details=f"{dewar.unique_id} refilled"
     )
     db.add(new_event)
     db.commit()
diff --git a/logistics/src/components/Slots.tsx b/logistics/src/components/Slots.tsx
index 1bc0aa7..96139bb 100644
--- a/logistics/src/components/Slots.tsx
+++ b/logistics/src/components/Slots.tsx
@@ -3,6 +3,7 @@ import { Box, Typography, Button, Alert } from '@mui/material';
 import styled from 'styled-components';
 import LocalGasStationIcon from '@mui/icons-material/LocalGasStation';
 import CountdownTimer from './CountdownTimer';
+import QRCode from 'react-qr-code';
 
 export interface SlotData {
     id: string;
@@ -20,7 +21,7 @@ interface SlotProps {
     data: SlotData;
     isSelected: boolean;
     onSelect: (data: SlotData) => void;
-    onRefillDewar: (qr_code?: string) => Promise<void>;
+    onRefillDewar: (dewar_unique_id?: string) => Promise<void>;
     reloadSlots: () => Promise<void>;
 }
 
@@ -33,7 +34,7 @@ const StyledSlot = styled(Box)<StyledSlotProps>`
     padding: 16px;
     margin: 8px;
     width: 150px;
-    height: 220px;
+    height: 260px;
     background-color: ${({ isSelected, isOccupied }) =>
             isSelected ? '#3f51b5' : isOccupied ? '#f44336' : '#4caf50'};
     color: white;
@@ -51,9 +52,48 @@ const StyledSlot = styled(Box)<StyledSlotProps>`
     }
 `;
 
+const QRCodeContainer = styled.div`
+    padding: 8px;
+    background-color: white;
+    border-radius: 8px;
+`;
+
+const BottleIcon: React.FC<{ fillHeight: number }> = ({ fillHeight }) => {
+    const pixelHeight = (276.777 * fillHeight) / 100;
+    const yPosition = 276.777 - pixelHeight;
+
+    return (
+        <svg height="100px" width="50px" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 276.777 276.777">
+            <defs>
+                <clipPath id="bottle-clip">
+                    <path d="M190.886,82.273c-3.23-2.586-7.525-7.643-7.525-21.639V43h8.027V0h-106v43h8.027v17.635
+                        c0,11.66-1.891,17.93-6.524,21.639c-21.813,17.459-31.121,36.748-31.121,64.5v100.088c0,16.496,13.42,29.916,29.916,29.916
+                        h105.405c16.496,0,29.916-13.42,29.916-29.916V146.773C221.007,121.103,210.029,97.594,190.886,82.273z"/>
+                </clipPath>
+            </defs>
+            <path fill="lightgray" d="M190.886,82.273c-3.23-2.586-7.525-7.643-7.525-21.639V43h8.027V0h-106v43h8.027v17.635
+                c0,11.66-1.891,17.93-6.524,21.639c-21.813,17.459-31.121,36.748-31.121,64.5v100.088c0,16.496,13.42,29.916,29.916,29.916
+                h105.405c16.496,0,29.916-13.42,29.916-29.916V146.773C221.007,121.103,210.029,97.594,190.886,82.273z"/>
+            <rect x="0" y={yPosition} width="100%" height={pixelHeight} fill="#00bfff" clipPath="url(#bottle-clip)" />
+        </svg>
+    );
+};
+
 const Slot: React.FC<SlotProps> = ({ data, isSelected, onSelect, onRefillDewar, reloadSlots }) => {
+    const calculateFillHeight = (timeUntilRefill?: number) => {
+        if (timeUntilRefill === undefined || timeUntilRefill <= 0) {
+            return 0;
+        }
+        const maxTime = 86400;
+        return Math.min((timeUntilRefill / maxTime) * 100, 100);
+    };
+
+    const fillHeight = calculateFillHeight(data.time_until_refill);
+
     useEffect(() => {
-        console.log(`Updated time_until_refill: ${data.time_until_refill}`);
+        if (data.time_until_refill !== undefined) {
+            console.log(`Updated time_until_refill: ${data.time_until_refill}`);
+        }
     }, [data.time_until_refill]);
 
     const handleRefill = async () => {
@@ -74,11 +114,18 @@ const Slot: React.FC<SlotProps> = ({ data, isSelected, onSelect, onRefillDewar,
         >
             <Typography variant="h6">{label}</Typography>
             {dewar_name && <Typography variant="body2">{`Dewar: ${dewar_name}`}</Typography>}
-            {dewar_unique_id && <Typography variant="body2">{`ID: ${dewar_unique_id}`}</Typography>}
-            {needs_refill && <LocalGasStationIcon />}
-            {dewar_unique_id && time_until_refill !== undefined && time_until_refill !== -1 && (
-                <CountdownTimer key={dewar_unique_id} totalSeconds={time_until_refill} />
+            {dewar_unique_id && (
+                <QRCodeContainer>
+                    <QRCode value={dewar_unique_id} size={64} />
+                </QRCodeContainer>
             )}
+            {needs_refill && <LocalGasStationIcon />}
+            {dewar_unique_id && (
+                <BottleIcon fillHeight={fillHeight} />
+            )}
+            {(dewar_unique_id && time_until_refill !== undefined && time_until_refill !== -1) ? (
+                <CountdownTimer key={dewar_unique_id} totalSeconds={time_until_refill} />
+            ) : null}
             {needs_refill && (
                 <Button onClick={handleRefill} sx={{ mt: 1, color: 'white' }}>
                     Refill
diff --git a/logistics/src/components/Storage.tsx b/logistics/src/components/Storage.tsx
index ab2b603..c4319d1 100644
--- a/logistics/src/components/Storage.tsx
+++ b/logistics/src/components/Storage.tsx
@@ -28,7 +28,7 @@ interface StorageProps {
     selectedSlot: string | null;
     slotsData: SlotData[];
     onSelectSlot: (slot: SlotData) => void;
-    onRefillDewar: (slot: SlotData) => void; // Adjusted this prop to pass SlotData object
+    onRefillDewar: (slot: SlotData) => void;
 }
 
 const Storage: React.FC<StorageProps> = ({ name, selectedSlot, slotsData, onSelectSlot, onRefillDewar }) => {
@@ -47,7 +47,7 @@ const Storage: React.FC<StorageProps> = ({ name, selectedSlot, slotsData, onSele
                         data={slot}
                         onSelect={handleSlotSelect}
                         isSelected={selectedSlot === slot.qr_code}
-                        onRefillDewar={onRefillDewar}  // Pass the refill handler to Slot component
+                        onRefillDewar={onRefillDewar}
                     />
                 ))}
             </StorageWrapper>