No more drilling, breaking or using drills on vacuum hangers. • Flat surface tiles - glass etc. The floors are suitable for the operation of vacuum products. • Make sure the ground is oil-free, dry and clean. • Place the case and the product respectively. Turn the cap clockwise all the way. • Before using the product, make sure that you install it securely. Size: 10 x 23 x 10 cm Color: Black Material: Metal