WATERPROOF MATERIAL: The armchair covers for arms is made of soft polyester with excellent elasticity, non-slip, machine washable.It is no longer a simple cover, but a part of sofa armrest.The stretchy arm slipcovers renew and decorate your chair armrest.The armchair protectors are great for home with children and pets. FUNCTION: The sofa arm covers are thickened design,better protect your sofa arm from wear,dirt and stains and extend its life.sofa cover stretch can perfectly covers the armrest, which is not easy to slip or shift.You no longer worry that chair arm cover is diffcult to use. SIMPLE DESIGN: Our armchair covers are strapless,easy to install,easy to store because of light weight.Color is available and owns simple design,suit for any style chair and sofa;Machine wash available makes it convenient to care for. No Bleach,Tumble Dry Low, No Ironing. SIZE & COLOR: 21.79.75.7inchelasticity, set of 2 Pcs in one package. Several classic colors, simple design,can well integrated into different home decoration styles;Just wear armchair arm covers on the sofa arm;Easy to install and take off. FRIENDLY AFTER SERVICE: If you have any question with our arm protectors, be free to contact us and we will make it right for you within 24 hours.