Allows drivetrain cleaning, maintenance and lubing to be completed easily Precision machined, 6061 aluminum body with a screw cap Inner polypropylene tool bit holder contains: 5 mm, 6 mm hex & T30 Torx bits Rubber O-ring reduces water ingress into tool bits Silicone sleeve protects bicycle crank when backpedaling Corrosion-resistant neodymium magnet snaps tool bits into place Handy size can be taken with you anywhere, 69 x 23 x 23 mm (excluding lanyard). E-BIKE DRIVETRAIN TOOL