Item Type: Silicone Roller for Dirt Roller Material: Silicone Melting Point: 150 °c Water Soluble: insoluble PeelingTest: Roll 60,000 times without peeling Size: Diameter 28mm/1.10in, bearing outer diameter 13mm/0.51in inner diameter 6mm/0.24in Roll Surface Hardness Parameters: Viscosity Type: Medium viscosity Viscosity Value: 410D Hardness (Shore): ° Applicable Scenarios: Dust workshop, kitchen staff hair cleaning, circuit board, PCB, LCD process, light guide sheet, soft film printing, SMT, clean room, electronic semiconductor and other industries when producing products, surface treatment required cleaning tools. Package List: 1 x Silicone Manual Roller Note: 1. Only fine dust particles can be removed (not anti static). 2. After use, please roll back and forth on the sticky paper several times to keep the surface of the sticky roller clean.Easy to Use: Lightweight and fast, just you roll it gently on the surface, it will suck away the dust immediately and keep your items clean. Silicone Material: Liquid silicone material is used, with excellent resilience, high temperature resistance and wear resistance. Long lasting and Resistant: anti wear, easy to operate, smooth rolling, not easy to get dust, meet your multiple needs. Efficient Cleaning: the roller quickly removes microscopic dust particles, which can quickly remove microscopic particles such as dust and dirt from computer screens, cell phone films and glass. Handle Design: Wear resistant and Resistant aluminum frame plastic handle, iron bearing, rubber support, environmentally friendly and safe, not easy to rust.