Panda Software SENQI Bicycle Boots Crank Protector(1 Pair) One piece size:h(0.71in)*l(1.73in)*w(1.3in),one piece weight:0.02Lb Protect your mountain MTB bike,Suitable for all kinds of dental plate High quality silicone material,anti-friction Multi-colored,multi-choice,Dress up your car,protect your car It is recommended that each rider personally or professionally fit themselves to their bicycle crank