The JD3.1 can be your key to consistent, healthy, injury free weight training. Its used purely for lower back strengthening, the most injury prone part of the body. Strengthening your lower back can help improve your overall strength in everything. Thanks to the JD3.1; adjustability you can align your body perfectly to train safely. Ankle supports adjust to 6 different heights for anatomical alignment and users between 5ft to 6ft 3 in. Stability grips provide extra support when aligning your body and getting on and off. 2.5 inch thick deluxe upholstery feels soft and comfortable to lay on so you can focus. 14 gauge heavy duty steel is safe and durable allowing the bench to hold up to 21 stone. Maximum user weight 135kg (21st 4lb). General information: Size H95, W70, D110cm.