Power-Grip Suction Vacuum Cup For Granite Glass Lifting | Stone Tech Inc

【Premium Material】Compared to other, our glass suction cups have unique brass pump and metal handle technology is more durable and high-grade than plastic and aluminium one. 【Load capacity】8 inch diameter suction cups is made of special rubber with a load capacity range of 480 lbs(max) which could works in -20℃ to 60℃ temperatures, and keep the vaccum for 6 hours. 【How to Use】Put the glass suction cup on the surface of the object, press the air pump continuously until the red prompt line disappears, you can use it to carry the object easily. Just press the release valve lever after the handling is completed. When the red line appears while lifting, simply thumb pump the plunger without removing the cup from the surfaces. We are committed to perfect product satisfaction, if you have any questions about the product, please feel free to contact us and we will give you a satisfactory solution soon.