Features:
This pair of propellers is suitable for various shaft diameter from 2mm to 6mm. A separate small gear pulley is attached in the propeller,  if you attach a 5 or 6mm diameter shaft motor then simply remove the extra pulley from the propeller bore. Made of superior plastic material, which is solid and durable for long term use.
With strong thrust, the propeller can be used for RC underwater boat.
Easy to install and once installed, it is not easy to fall off.
Compact size and light weight will not add much burden on boat to ensure safe operation. It is a 3D printed model with best quality material.

Specification:
Condition: 100% Brand New
Item Type: RC Accessory
Material: Plastic
Color: Yellow
Weight: Approx. 10g
Diameter: Approx. 45mm / 1.77inch
Bore Diameter: Approx. 6mm                                                                                                                                                                                              Hole Depth: Approx. Approx. 13.5mm / 0.53inch

Package list:
1 * 5-Blade Boat Propeller