High Quality: Durable high density memory foam maintains its shape even with regular use. Adjustable & Non-Slip: With adjustable rubber closure, it can fit different chairs regardless of their type. The bottom material is made of non-slip particles.Removable & Machine Washable: Luxurious fabric covers can be removed and safely machine washed.Contours your elbow with perfect fit for utmost satisfaction, reduces and relieves pain. Provides you with higher work performance, efficiency and endurance.Size: 25 × 14 x 3cm, suitable for most 6-9 inch chair arms at home and office. In addition, the product is easy to put on and take off and can relieve the pressure between arm and elbow. Note: The data is all manually measured, please allow an error of 1-3cm due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.