Delta hublox bolt on skewershublox security skewers are unique lightweight skewers to prevent wheel theft for quick release hubs the cycle skewers lock and unlock with a special key thats easy to attach to any keychain featuresunique light weight skewers prevent wheel theft for quick release hubslock and unlock with special keyeasy to carry attaches to any key chainanti rust chrome plated axle stainless steel springslightweight weighs 70 gramspairtighten to 7 nmframe dropout outside dimens