Coated in black nickel and constructed from the sturdiest high grade steel?, this stylish speedball swivel is made to last a lifetime. Reinforced with industrial strength ball bearings, this is the ultimate speed bag hanger for pro gyms and boxing training institutes. Designed with low friction and a reduced core, athletes will benefit from the smooth rotation plus enhanced speed and movement with every hit. Finished off with a quick release feature, changing or removing the speedball for storage is easier than ever. Comes with all necessary fixings for easy installation.