Own two Quantum Fitness strength machines in one with the Quantum QCS542 Ab/Back Machine, part of the complete line of Combination Series commercial fitness equipment. The Quantum QCS-542's user friendly design allows for ab and back exercises from a comfortable seated position. 

The Quantum QCS-542 Ab/Back Machine features a simple, high functionality design that's easy to sit down to and also exit. Single 150 lb. steel weight stack comes finished in flat black paint. Each individual weight plate is numbered in total weight added and also fitted with dual self aligning, low-friction, machine-pressed nylon bushings for smooth, effortless movement. Weight stack rests on a 1.5" thick rubber base to dampen noise and reduce shock.

Experience the high quality craftsmanship and strong warranty of Qauntum's health club quality products. The QCS-542 Ab/Back Extension Machine by Quantum Fitness is dual-use fitness equipment that combines two gym machines into a single budget-friendly workout package.

Quantum's commercial quality, American-made line of Combination Series dual function gym machines are comparable models to Quantum's complete line of club strength fitness equipment, with the same high-strength structural frame, steel weight stacks, upholstery and designs well-suited to a broad range of user types and fitness facilities of all kinds. Quantum's machine configurations are specially designed to suit a variety of facilities. Quantum Fitness offers twelve commercial models of space-saving, dual function gym equipment to choose from.