This 2-in-1 hydraulic core trainer integrates an arm twister and ab roller into one detachable all-in-one home gym equipment. Built with premium 15-level adjustable hydraulic resistance from 22 to 440 lbs, it suits users from beginner to advanced for progressive strength training. The 10-position adjustable handle and ergonomic non-slip grips deliver comfortable, smooth and controlled motion, targeting chest, arms, shoulders, abs and back muscles for full-body workout efficiency. Detachable compact design is easy to disassemble and store in the matched backpack, ultra portable for home, office and travel use. Upgraded hydraulic structure is safer than traditional U-shaped trainers, preventing strain and injury. Comes complete with yoga mat and storage bag, it is a perfect ready-to-go fitness gift and space-saving essential for any home gym.