lapworks big screen tv swivel base, 21x16 inch turntable platform - steel ball bearings - supports lcd/led tvs up to 200 pounds - stand only lapworks <b>not compatible with 2-leg tv stands.</b> the big screen tv swivel is specifically designed for single-stand televisions whose base is longer than 16", but under 22". if you have a television with 2-legs, or a larger television, please check out our 4k tv swivel instead.<br> <br> this big screen tv swivel provides excellent stability and maneuverability for left to right viewing. it rotates on 24 steel ball bearings that can support an evenly distributed maximum weight load of 200 lbs. it measures 21.65” wide by 15.94” long by 1.375” high so it can support just about any large screen tv. the length at the edges is 8” and then it curves out to a maximum of 15.94”. <br> <br> to provide the most versatility, this swivel has a unique shape that allows you to line-up the one flat edge or the one rounded edge to the base of your big screen tv. this way you eliminate any mismatch when installing the swivel under your big screen tv's base. <br> <br> the swivel is made from high-impact abs material with steel ball bearings. it can make occasional rotations as needed or rotate as often as you'd like it to rotate. the big screen tv swivel has been tested up to 10,000 rotations without incidence. so if you rotate this swivel twice a day for 13.69 years, you will reach the 10,000 rotations it has been tested for. <br> <br> to prevent slipping, rubber bumpers on the big screen tv's round bottom panel provide super gripping. most large screen tv bases have rubber bumpers for gripping. be sure to align those rubber bumpers with the big screen<br><br>6 month warranty. problems? contact us for help.