Features: Function: The support leg is suitable for most of the bed frames, bed center slat, which can protect your bed and mattress from damage or sagging. Measure: The support legs of the bed frame have three different height sizes, and the height of the support legs can be adjusted. 150mm(Adjusts from 165mm to 285mm), 180mm(Adjusts from 195mm to 345mm), 198mm(Adjusts from 210mm to 375mm). More stable: The diameter of the adjusting screw at the bottom of our bed leg is 45mm, so it is more stable. Easy to install: The bed frame has hole, aim at the double hole with the legs for bed frame and tighten the screw. If the bed frame without hole, clamp the bed frame with bed frame legs and auxiliary plate and tighten the screws. Packing included：1pc bed frame center support leg Specifications: Material: Plastic Size: As picture shows Type: 15cm/18cm/19.5cm Package Includes: 1x Bed Frame Support Leg note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to difference between different monitors, the picture may not reflect the actual color of the item.