1.Material: memory foam cotton; Size:23.57.53cm / 9.331.2 inch (LWH); They have a very cover and memory foam which feels fantastic when rest your elbows on them. 2.Advantage :1. The armrest pad has stickers/buckles, which can be adjusted and fixed on the armrest of the chair. 2. The bottom is designed with nonslip silicone particles. 3. Using soft and comfortable fabric, ergonomic arm pillow, memory foam fits the contours of your elbow and arm, and solves the problem of hard plastic armrest by providing cushioning to reduce the pressure between your arm and elbow. 4. Memory foam recovers its shape and is elastic after use. 3.Easy to install; The armrest pad is not divided between left and right. 2 elastic straps featured can be adjusted to fit different chair arm. They stay right in place with the long secure straps and they would fit any chair comfortably as a replacement or supplement for most office chair arm rests. 4.Application:These office chair arm pads are a perfect fit and blend with the office chair. Protects chair arms from normal wear and tear. It covers the wornaway fabric on the arm and provide a soft 'interface' between your arms and the chair arm. Suitable for rotating office chair, swivel chair, computer chair. For people who sit and work for a long time, a memory foam computer chair armrest pad is a must.