Durable Material: Made of high-quality polyester and spandex, these office chair armrest covers are water-resistant, durable, and stretchy. The stretchy office chair covers are designed to protect your chair from stains and wear. Zipper: These office chair armrest covers feature a zipper and offer a secure and non-slip fit. The desk cover protector ensures they stay in place and give your chair a sleek look. Easy to Clean: These office chair armrest covers are machine washable and hand washable, and easy to maintain. Avoid chlorine bleach and ironing for a long lifespan of the armrest covers. Universal Fit: Office chair armrest covers are designed for armrests with a length of 45 cm and a width of 7.5 cm. These spandex chair covers are suitable for most office chairs. 2-Piece Set: This office chair armrest set includes two black armrest covers, which offer full protection for one chair and make a practical and stylish addition to your workspace.