About this item S30 with 10pcs different joints, suitable for most popular dash cams. For the corresponding brand and model, please check the picture. The mount uses POM and ABS plastics, tolerable temperature range is: -40~120; the suction cup uses PVC material, tolerable temperature range is: -20~70, and bearing weight up to 5kgs (11 lb). Easy to Install, remove the suction cup protective film and attach to a clean and smooth surface to get maximum holding strength on the windshield. 360 degree rotation design, rotate ball adapter head provides flexibility for positioning the dash cam. Easier to use than traditional adhesive mount holders, no harm to car glass. Dimensions: 2.17 x 2.17 x 2.95 inches.