| Model | 20 inches | 24 inch |
|---|---|---|
| surface | Dense vertical structure (QL-03) | Dense vertical structure (QL-03) |
| Weight | 4.2 kg | 5 kg |
| Dimensions (L × W × H) | 62 × 42 × 25 cm | 66 × 45 × 24 cm |
| Roll | 360° rotating casters | 360° rotating casters |
| handles | Above & laterally | Above & laterally |
| Lock | TSA combination lock | TSA combination lock |
| Water protection | Splash-proof | Splash-proof |
| material | Aluminum-magnesium alloy | Aluminum-magnesium alloy |