Feature 1Cleaning Effect: Electrostatic design for better cleaning of fine surface impurities such as hair, dander, dust, fibers, rubber powder and copper powder. 2Low Viscosity: Roller will not leave adhesive chips or sticky substances on the screen surface, avoiding damage to the screen or leaving residues. 3Tough Silicone : Highly resilient, high temperature resistant and wear resistant liquid silicone material, safe and durable, and can be used for a long time. 4Durable Structure: Wear resistant and durable black aluminum frame plastic handle, iron and rubber bearings, environmental protection, not easy to rust. 5Practical Tool: Users can use the roller for surface cleaning or cell phone screen lamination at any time, whether at home, office or on the go.Item Type:DustRemovalRoller .wang-edit-text{ font-family:'Arial' !important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center }Material:Silicone, aluminum, plastic, iron, glueMelting Point: 150CWater Solubility: InsolublePeeling Test: Rolling 60,000 times without peelingInner or Outer Diameter: Approx. 28mm or 1.1in bearing outer diameter 13mm or 0.51in inner diameter 6mm or 0.23inRoll Surface Hardness Parameters:Viscosity Type: Low viscosityViscosity Value: 310DHardness (Shore hardness): 32Applicable Scenes: Clean room, kitchen staff hair cleaning, circuit board, PCB, LCD process, light guide sheet, soft sheet precision printing, SMT, electronic semiconductor and other industries when producing products, the surface treatment required cleaning tools.Package List1 x DustRemovalRollerNote1. Only remove tiny dust particles (not anti static)2. After Use: Please roll back and forth on the sticky paper several times to keep the surface of the sticky dust roller clean. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.