Invacare Pronto Series, New Arm Pads, Full Length, Urethane, Black (15" L x 2-5/8" W) OEM Style 2 Arm Rest For Invacare Pronto, M51, M61, M71, M91, M94, TDX SI with Captain Seat. 

Trac-Fab All Terrain Chairs

 

This is for 2 armrest pads.