Set of 8.The furniture legs leveler and T-Nuts are made of 304 Stainless Steel,5/16-18 inch Thread The stainless steel doesn't rust at all,Great for long-term fixed furniture cabinets and humid out or indoor environment The plastic base is specially designed for moisture and silence resistance.And The furniture feet can reduces friction & noise while moving furniture Heavy duty -These furniture levelers are very strong to support heavy furniture Good for floors:The stainless steel leveling feet is kind for all types of floors including,wood,hardwood,floors,tile,laminate,carpet 304 Stainless Steel Adjustable Furniture Leg Leveler 5/16-18 Inch with 8 Prong of 304 Stainless Steel T-Nuts,Set of 8(Black)