PROTECT YOUR FLOOR: In addition to stopping shaking and reducing vibration on uneven floors, the bottom of the adjustable feet is also equipped with thick high-density felt to protect the floor, tile or carpet from scratches or loud noises when moving. 1320 LBS MAX SUPPORT - Heavy duty and adjustable commercial grade furniture legs, T-shaped nuts and threaded inserts made of metal, hold over 330lbs per foot, a set of four furniture brackets weighing 1320lbs! ADJUSTABLE FURNITURE LEGS - 1-3/4" steel inserted into a 3/8" to 16" thread. 3/8" diameter and 1/2" thick commercial grade base and fully adjustable from 3/4" to 1-1/2" for maximum support and adjustability. Attention: Please check the size before purchasing to make sure it meets requirements. Recommended for large or heavy furniture with leg diameters greater than 1-1/2"; if small, there is a risk of cracking during installation. Easy installation: pre-drill a 1/2 inch diameter hole in furniture leg, then insert screw installation into the T-nut (tighten with a hammer) and turn the leveler to desired position to complete the adjustment. If it is a metal leg, you must first weld a 3/8 inch threaded insert, and then install the flat foot. For existing furniture legs with 3/8"-16 threads, adjust the leg by adjusting the horizontal screw., Weight: 1.1133344231 Pounds, Manufacturer: Rtxbvg