Continuous Cloth Belts for heavy-duty use. High quality ‘close-coat’ Aluminium Oxide grit. Heavy-duty X-weight cloth backing. Fully-ground belt joints, to prevent the joint ‘catching’ the work-piece during use. Suitable for use on all popular 100mm x 610mm belt sanders. Specifically: Bosch, Hitachi, Makita, Ryobi. Specifically: Ryobi B7100. Shrink wrapped.