4pcs Hobbypark RC Airplane Prop Saver 3.17mm with Screws Rubber O Rings Kit

Item: Prop Saver 3.17mm with Screws Rubber O Rings. 4x Prop Savers 8x Rubber O-Rings 8x Screws. Material : Rubber (O Ring), Aluminum (Prop Saver).

This product would be ideal for model airplane enthusiasts who frequently replace aircraft propellers.