【RELIABLE MATERIAL】High quality rubber pad and plastic handle , good handle grip, strong suction, seamless gap, no air leaksolid and durable. Stable and not easy to fall off when lifting objects, ensuring safety. 【EASY TO USE】 Pump the plunger until the cup attaches completely, then vacuum is sufficient for lifting.Press the red deflation button to remove the suction cup. 【PERFECT APPICATION】8" vacuum suction cup use the rubber chassis toughness and deformation to create a vacuum, and use atmospheric pressure to firmly grasp the item, suitable for lifting, handling smooth surfaces, glass, floor, marble, table, steel, etc. 【WEIGHT LIMIT】Practical and useful: Suitable for lifting the glass less than or equal to 100kg.Do not use suction cups when red warning lines appear. 【NOTICE】Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. Welcome to contact Astyer for any questions.