Using the high density foam filled Superglide cushion to rest palms on whilst typing keeps the wrists in a neutral position, conducive to reduced muscle and tendon strain and correct circulation. The Superglide cushions are upholstered with a unique silicon impregnated fabric, allowing your hands to literally glide around the keyboard. The cushions are mounted on a durable easy clean PVC base which supports the keyboard. The base incorporates four anti-slip rubber feet which prevent any unwanted movement across the desk. •Dimensions - 510mm x 275mm. •Base colour - Light Grey. •Cushion Colour - Mid Blue or Black