Add comfortable padding for the rear rack with the Blix Rear Rack Cushion. Easily attach with velcro straps and be on your way! Cushions are recommended for passengers who enjoy comfort and awesome ride experiences. Compatible with Packa (fits two cushions), Dubbel and Ultra models. Size: 12" x 6.5" x 2" Material: Foam Can use 1 or 2 cushions on the rear rack