Self-adhesive Mildew resistant Provides a long-lasting, watertight seal The surface is smooth and beautiful. Backing glue is made of perfect airproof butyl rubber. It is durable under high or low temperture and wet conditions. Fast and easy to insall, easy to clean, perfect adhesive. It can be adhesive to ceramic tile and marble. It will not crack, discolor, shrink or dry out. Specification: 12.8mm(width) x 3.35m(length) Available in different colors and sizes, and for other applications.