Color 4 Pcs Material Metal Style Heavy Duty,Platform Item Weight 4 Pounds About this item Application: 7.08"(Adjusts from 7.08" to 13.3"), It is suitable for most of the bed frames. Support Leg construction allows you to add essential support to bed slats or bed frame, protecting your bed and mattress from sagging and damage. Easy to Install: lf the bed frame has holes,align the double holes with the bracket and tighten the screw.If the bed frame has no holes, clamp the bed frame with bracket and auxiliary plate and tighten the screws. More Durable:The support legs are made with high-quality steel, Electrophoresis black to prevent rust and corrosion, Leg bottom PVC pad are non-slip and wear resistant, won' t be harm and scratches to your floors and it has better grip. Complete Hardware: 4pcs Height Adjustable from 7.08" to 13.3" Adjustable Height Support Leg,8pcs 2.48"screw, 4pcs supplementary plate. The design is a cost effective e way for maintaining the life of your expensive bedbase / Wooden Slat / Mattress Foundation / Platform Bed Frame The bed frame support legs will hold and evenly distribute the weight of your heavy mattress efficiently protecting your bed and mattress from sagging and damage .Saving you money on bed repairs and mattress replacements.