The level of stress is organised and categorised into colours. Red equating to severe stress on the body, Orange symbolising severe stress on the body, Yellow signifies light stress and Blue shows no stress on the body. When looking at the image, it is easy to see how the red and orange models demonstrate the postural stress involved when items are being retrieved from the base cabinet. The yellow ergonomics model shows the user accessing a full extension shows significantly better posture and the maximum level of stress on the body is still minimal and in the yellow zone despite items being on the bottom drawer. By utilising drawers and/or roll outs rather than shelves, a natural lifting posture is used.