Hot Racing aluminum dual 5mm bearing drive strut for the stock prop shaft on the Traxxas DCB M41 Race Boat. Features: - Pre-installed dual stainless steel ball bearings - 5mm ID bearings are compatible with the stock prop shaft - CNC machined aluminum construction - Anodized blue in color Includes:(1) drive strut Requires: - Installation onto the boat Specs: Bearings: 5x10x4mm Note"Works with stock Traxxas 5729 flex shaft