A combination of user-friendly ergonomic design and advanced bio-mechanical engineering, the GSCR349 was created to increase calf muscle interaction and speed the rate of development. This is achieved by the use of a unique foot platform design that eliminates stress compression on the ball of the foot while providing maximum range of motion for deep muscle fiber penetration. The weight carriage is designed for a 3:1 weight ratio and pivots on precision pillow block and sealed ball bearings for smooth friction-free movement through heavy-duty calf-blasting workouts. In order to carry the heaviest loads, the main frame is constructed of 5 x 7,5 cm 11-gauge high-tensile strength steel, making the GSCR349 perfect for high traffic, heavy use gyms and clubs. Super-durable, full thick  DuraFirm™  padding supplies the comfort even during workouts with enormous poundage. Note : olympic adapter sleeves, weight plates and collars optional. Operates on a 3:1 weight ratio for developing powerful calves. Pillow block bearings at main pivot points for ultra smooth movement under the heaviest loads. Thick, comfortable  DuraFirm™  knee pads and seat pad. Angled foot platform with anti-slip surface for full range of motion. Adjustable for all size users. High tensile strength steel 5 x 7,5 cm Ideal for home and commercial use For standard plates ø 25 and Olympic plates with 2 adaptors (not included) Product : L 119.3 x B 58.4 x H 99 cm Package 1: L 114 x B 43 x H 28 cm Package 2: L 55 x B 43 x H 28 cm Net/gross weight: 42.4 kg / 43.5 kg Colour: steel grey, black coating