High quality materials: The surface of the pressure roller is made of silica gel. The high quality material with good toughness does not damage the soundproofing material. It is wear-resistant, smooth and resistant to high temperatures. Bi-directional bearing: Bi-directional bearing design, more stable and flexible operation, effectively improving welding speed and construction quality. Comfortable Handle: Solid wood handle, ergonomic and wear-resistant design, hand fatigue, comfortable feeling. You can roll it back and forth on the adhesive surface, can make the binding area more tight. Usage: Designed to evenly fold your leather, it can avoid creasing the pieces you don't want to crease. You can use it to smooth the edge of leather and is good for bonding. Scope of application: The car soundproofing construction tool is suitable for high temperature welding of waterproof PVC films, sealing strip stickers, sound bars. Product Name: Soundproof Roll Color: Black, Yellow Quantity: 2 * Sound Insulation Installation Tools Size: Wheel length: 3 cm, diameter: 3.5 cm Handle length: 12 cm, length total: 17.5 cm Material: The surface of the pressure roller is made of silicone. High quality materials with good toughness do not damage the soundproofing material. Wear-resistant, smooth and high temperature resistant. Comfortable handle: The handle is made of high-quality solid wood, is wear-resistant, ergonomic, comfortable and relieves hand fatigue. Sophisticated design: two-way bearing construction, more stable and flexible operation, which effectively improves the speed of welding and construction quality. Scope of application: Designed to fold leather evenly, it helps prevent creases on the parts that the leather does not want to wrinkle. You can use it to smooth the edges of leather and is very suitable for viscose. You can roll it back and forth on the sticky surface to shrink the sticky area. Area of application: automotive soundproofing construction tools, suitable for high temperature welding of waterproof membranes PVC, tarpaulin membranes, sealing strips and soundproof beams.