1. hand roller tool is made of silicone, which is fine processing, wear resistant, smooth and high temperature resistant,strong and durable 2. this seam roller tool is lightweight and portable, easy to store and carry.whether you're working on insulation, acoustic membranes, wallpaper or tarpaulin banners,corner seaming, car film pressing 3. 2-in-1 Design Seam roller features a double-ended design with a high-temperature resistant rubber roller on one side and a sturdy brass inner corner roller on the other 4 It's widely application suitable for very suitable for detail work in tight corners, and for seaming around fixtures,insulation, acoustic membranes, wallpaper or tarpaulin banners,corner seaming, car film pressing etc 5.Widely application for high temperature welding such as PVC waterproof membrane，EPDM roof and tarpaulin membrane, pressing on the insulation, sound-absorbing film,Wallpaper, Tarpaulin Banner, Manufacturer: HKBST