CyclingDeal Trainer Thru Axle - Bike Bicycle 12mm Rear Wheel Skewer for Indoor - Length 166mm to 178mm Boost -Thread Pitch: M12 x P1. 5 - Spacers 2. 5mm/6mm/tapered 7. 5mm Included.

STRONGSAFE: Your safety is our 1st priority. The skewers are very strong because they are made of heat treated Cromoly alloy. Weight: 73g = 0. 16lbs. NON QUICK RELEASE: Prevent removing wheels by hands. You must use 5mm hex wrench (NOT includedto remove the wheels. SPECIFICATION: Skewers Front Axles: 5mm x 112mm, Rear Axles: 5mm x 148. 5mm. LONG LASTING: The skewers will be never broken or rusted. (Please apply some grease initially.