Features 1、SILICONE MATERIAL: An additive liquid silicone material with good resilience, high temperature resistance, and wear resistance. Low hardness, good softness, and rust free. Safe and durable, suitable for long term use. 2、ALUMINUM ALLOY HANDLE: Wear resistant and durable, all aluminum alloy rubber handle, iron bearing, rubber bearing, non toxic, environmentally friendly, and not easy to rust. 3、WITH STATIC ELECTRICITY: With the help of the static electricity, the roller can better clean small impurities such as hair, dander, dust, fibers, rubber powder, and copper powder on the surface. 4、EASY CARRYING: Comes with a small size and being lightweight as well, this roller is easy to carry around for convenient use. 5、APPLICABLE SCENARIOS: Clean hair for workers in dust free workshops and kitchens, cleaning tools for circuit boards, PCBs, LCD processes, light guides, accuracy printing of soft films, SMT, dust free rooms, electronic semiconductors, and other industries when producing products. Specifications Item Type: Dust Removal Roller Roller Material: Silicone Melting Point: 150 ℃ Water Solubility: Insoluble Peeling Test: Rolling 60000 times without peeling Diameter: Inner Outer Diameter: Diameter Approx. 28mm / 1.1in Bearing Outer Diameter: Approx. 13mm / 0.51in Inner Diameter: Approx. 6mm / 0.24in Roll Surface Hardness Parameters: Viscosity Type: Utra high viscosity Viscosity Value: 900D Hardness (Shore Hardness): 17 ° Applicable Scenarios: Clean hair for workers in dust free workshops and kitchens, cleaning tools for circuit boards, PCBs, LCD processes, light guides, accuracy printing of soft films, SMT, dust free rooms, electronic semiconductors, and other industries when producing products. Package List 1 x Dust Removal Roller