Nylex Covered Gel-Foam CushionsNylex covered, gel and foam wheelchair cushion utilizes gel pack placed between 2 layers of resilient foam to stabilize wheelchair patients while helping to reduce pressure Designed for both comfort and function 3" thick cushion 250 lb. weight capacity 5 year warranty 1 each Gel Foam Wheelchair Cushion with Nylex Cover, 18" x 16" COVER TYPE Nylex CUSHION MATERIAL Gel Foam CUSHION TYPE Flat DEPTH INCHES 21 ",16 ",18 " LATEX FREE Yes LENGTH INCHES 21