Item Type: Anti static roller Material: Silicone(main body), aluminium, plastic, iron, glue Color: Blue black Melting Point: 150°C Water Solubility: Insoluble Peeling Test: Rolling 60000 times without peeling Diameter: 28mm / 1.1in Ball Bearing Outer Diameter: 13mm / 0.5in Ball Bearing Inner Diameter: 6mm / 0.2in Viscosity: Extra high viscosity Viscosity Value: 900D Hardness(Shore hardness): 17° Applicable scenes: Clean room, kitchen staff hair cleaning, circuit board, PCB, LCD process, light guide, soft sheet accurate printing, SMT, electronic semiconductor and other industries need to clean surface. Package List: 1 x Roller Note: 1. Can only remove tiny dust particles(not anti static). 2. After use: Please use in the sticky paper to roll back and forth several times to keep the surface of the sticky dust roller clean.STATIC FUNCTION: This roller is equipped with a static feature that enables efficient removal of small impurities on the surface, such as hair, dander, dust, fibers, rubber powder, and copper powder. Maintain a clean and clear screen without any hassle. STURDY AND WEAR RESISTANT: The roller's black aluminum frame with a plastic handle is built to withstand wear and tear. It features a combination of iron and rubber bearings, making it clean, and resistant to rust. SILICONE CONSTRUCTION: The roller is made of premium silicone material that is safe, sturdy, and designed for long term use. Ensure efficiency and reliability in your dust removal process. GREAT FLEXIBILITY: This roller features a low hardness level and excellent flexibility, ensuring ease of use and preventing rust. Keep your surfaces clean. ENHANCED MATERIAL: Made with a premium liquid silicone material that offers high rebound, high temperature resistance, and excellent wear resistance. Experience the advantages of accurate engineering.