The body has a vulcanized rubber bottom

They're constructed with high quality hook & loop and superior adhesives for long lasting durability

which smooths the edge to reduce the time on polishing afterwards and is built with a brass core to best preserve diamond strength

Along with the aluminum manifold system

Can be used indoors and outdoors

K-Bond ELITE Flowing "Ship Saver" 1620 The body has a vulcanizedK Bond ELITE Flowing is a premium quality, acrylic blended adhesive that has been designed with the stone fabricator and installer in mind. It has been engineered to have the best possible ratio of working time to curing speed possible with increased bonding strength compared to standard polyester adhesives. Material Safety Data Sheet