Gemfan prop 10x4.5 ABS Plastic CW&CCW Propeller Set

Prop Hole Size: 4.75mmProp-Adaptor Hole Size 3.0mm, 3.17mm, 4.0mmWeight of 1 prop: 8g approximately 1 x ABS Plastic Prop CW (clockwise)1 x ABS Plastic Prop CCW (counter - clockwise)2 x Prop Adaptor Rings