This Quality D'Luca Button Accordion Back Pad will protect your accordion bellow from your belt buckle, suspenders, or clothing. The D'Luca Accordion Back Pads are held on by Velcro Fasteners. Velcro hooks are pre-mounted on the back of the pad, and the supplied Velcro Sticker Loops must be attached to the back of your accordion. Make sure you order the right size pad, as they come in various sizes. Measure your accordion before ordering, see pictures for details. Includes everything you need to mount it on the accordion. Fits Button Accordions. Accordion back pad dimensions: Large, 11 inches Height x 13 inches Length