The Invacare Matrx MX1 Back Fixed Dual Mount Hardware can be adjusted by depth, angle and rotation for optimal positioning. This hardware is also width-adjustable to fit wheelchairs either 1" wider or narrower than back model width.For Quotes and Orders, please contact Matrx Seating & Positioning Customer Service at -1-888-433-6818 or visit www.motionconcepts.com for more product information.