Product Specifications Product Name: Hand Pressure Roller Material: Silicone Notice: 1. The automotive soundproof roll is made of high quality silica gel, which has good toughness and does not damage the soundproof material. 2. Reinforced handle design, not easy to fall off. Package: 2 pieces of hand pressure roller to meet your needs. High quality material: the automotive soundproof roller is made of high quality silica gel, which has good toughness and does not damage the soundproof material. Unique design: The solid wood handle matches the ergonomic design and feels good . Detachable structure, easy and convenient to replace the bearing. Wide range of applications: suitable for high temperature welding of car audio mufflers, PVC waterproof membranes, sealing strip stickers and soundbars.