2 in 1 design Seam Roller is a must have tool in welding work, high temperature resistance, wear resistance, more convenient to use One side is silicone roller, another is Brass internal corner roller The handle is made of high-quality solid wood, wear-resistant, ergonomically designed, and comfortable in the hand. Specifications: Material: Metal + silicone + Wood Silica Gel Width: 4cm Diameter of Copper Pressure Roller: 6mm Total Length：23.5cm Package Includes: 1 x 2 in 1 Welding Handheld Roller