high quality brand new easy to use 48mm x 30m Very easy to use, just peel off the released film and then apply this butyl sealant tape to anywhere needed It has weather resistance, aging resistance and water resistance, and has a sealing, vibration damping and protection effect on the surface. It can maintain flexibility, adhesion, can withstand a certain degree of displacement, and deformation has good followability. Waterproof sealed and UV resistant (sunshine).