[Package] Includes 3 wall lock and wrench, numbered W400BWHP. Great pool accessories. [Function] Work to connect the suction cleaner hose to swimming pool wall, do a better job. [Design] When open the cover, there is a plate, put it into the space of the hose to hold it very well. [Material] Made of much harder plastic, not easy to break like others, also resistant to corrosion. [Installation] Simply screw the lock tightly to the wall, using tape to increase friction if necessary. Reliable Material: pool vacuum parts are made of quality plastic material, with a smooth , reliable, sturdy and wear resistant, not easy to deform or break, which can you for a long time Practical Swimming Pool Vacuum Accessories: pool cleaner hose vac locks can prevent the pool cleaner hose from being pushed open when the pump stops due to the return pressure of the pump, making them useful pool vacuum accessories Please note: the physical slightly color difference or difference, does not affect the use,