Fangrui Product Details Attention: Please Check The Size Before Purchasing To Ensure It Meets Your Requirements. Recommended For Large Or Heavy Furniture With Leg Diameters Greater Than 1-1/2 Inches; If It Is Small, There Is A Risk Of Cracking During Installation. Adjustable Furniture Feet: 1-3/4 Inch Long Steel Inserted Into 3/8-16inch Thread. Large Commercial Quality, 3/8 Inch Diameter 1/2inch Thick Base And Fully Adjustable Height From 3/4 Inch To 1-1/2inch For Maximum Support And Adjustability. 1320 Pounds Maximum Support: Commercial Quality Adjustable Heavy-duty Furniture Legs, T-shaped Nuts And Threaded Inserts Made Of Metal, Support Over 330 Pounds Per Foot, A Set Of Four Supports Furniture Weighing 1320 Pounds! Protect Your Floor: In Addition To Stopping Shaking And Reducing Vibration On Uneven Floors, The Bottom Of The Adjustable Feet Is Also Equipped With High-density Thick Felt To Protect The Floor, Tiles, Or Carpet From Scratches Or Harsh Noise When Moving. Easy Installation: Pre Drill A 1/2 Inch Diameter Hole On Th Crafted With Attention To Detail