SIZE - Product Size: M6 x 10 x 20mm/M6 x 0.39' x 0.79'(Thread DiameterThread LengthBase Diameter); Adjustable Range of Height: 7-10mm/0.28'-0.39'; Base Size: 20 x 7mm/0.79' x 0.28'(DH); Package Include: 20 x adjustable leveling feet APPLY SCENE - The adjustable leveling foot is for office or household furniture even industrial machine with threaded sockets. Such as mechanical equipment, fitness equipment, racks, TV stands, table, cabinet, shelves, beach chairs, desk and so on KEEP BALANCE - If the floor is rough or the leg of the product is bad, you can installed it at the bottom of your product to stay balanced. It can effectively protect the product during the movement, prevent scratches and reduce sharp noise EASY INSTALL - Made of plastic and metal, it is and convenient, easy to install and better stability for furniture and machine feet. Choosing the right one for your product then screw it in as you desire. If the mounting hole size is M6, you can use these leveling feet to install your product feet PREVENT MOISTURE and ANTI SLIP - The thick plastic bottom and adjustable thread height keep the product feet away from the moist floor, effectively protecting the feet and floor to keep it tidy and beauty, and also prevent slippage to make it stable