50/55/60/65/70/75mm four-blade CW/CCW propellers for RC RC boats, trawlers, nesting boats, etc.
| Outer Diameter (mm) | Hole Diameter (mm) | Paddle Hole Depth (mm) | Keyway Width(mm) | Keyway Depth(mm) |
| 50 | 4 | 12 | 3 | 2.5 |
| 55 | 4 | 13.5 | 3 | 2.5 |
| 60 | 4 | 14 | 3 | 2.5 |
| 65 | 4 | 15 | 3 | 2.5 |
| 70 | 4 | 16.5 | 3 | 2.5 |
| 75 | 4 | 17.5 | 3 | 2.5 |
Due to shipping costs, it is cost effective to purchase in bulk.