BenchK B1W Workout Bench Reversible bench BenchK B1 with an additional seat and four leg support rollers. The back support, additional seat and leg support rollers are made entirely from polyurethane (PU) without the use of synthetic leather or foam. The metal frame is produced using a 50 x 40 mm/131⁄32″ x 137⁄64″ profile of 2mm/05⁄64″ thickness and has a black matte powder coated finish. The bench allows for a variety of abdominal exercises, barbell presses or exercises with dumbbells. BenchK B1 bench is compatible with all BenchK wall bars.