INV2377 Features: * Invacare Matrx PB Deep Back 17-19"W x 12"H * "Easy Set" hardware installed and adjusted in minutes * Infinite adjustment of recline * 16" and 20 " high backs include mounting plate/attachment point for headrests * Heights 12", 16" or 20"; widths from 14" - 20" * Weight Capacity: 300 lbs Specifications: * Each back fits 3 different wheelchair widths Dimensions: * Thickness: 7" contour depth * Seat dimensions: 12", 16", 20" H x 14", 16", 17", 18", 20" W * Product Weight: 5 lbs