Innovative Gravity Lock catches are included that provide an easy access in and out catch lock which ensures safety at all times * Better Hand Grips: Commercial grade hand grips with end caps for better feel * You can customize your WB-HR to include the WB-UB which provides lock and load access and the WB-LTO cable system to provide cable driven exercises * Chin Up Bar: 400 lbs. * Bench and Lat Tower are optional pieces and sold separate