LapWorks 15" Heavy Duty Swivel - With Steel Ball Bearings for Indoor/Outdoor Use With Flat Panel Monitors and Big Screen Tv's LIFETIME WARRANTY! Our products are made of 100% high impact ABS material while other inferior swivels are made of a softer Polypropylene which is so much softer (and less expensive) than ABS that heavy items will dent them and they eventually will no longer turn smoothly. We have tested our ABS swivels through 10,000 operation with varying weight loads and they have never shown any wear or denting by the ball bearings regardless of the amount of weight loaded onto them. Non-skid, non-scratch rubber pads. Steel ball bearing quality 0.8" Thin Profile. Need a cushioned, no-slip pad? Search for SWV-NOSLIP-15 Suitable for any size Notebook Computer, heavy Plants, Arts & Crafts. Works great for monitors, TV's, Stereo Speakers, Full 360 degree Rotation Supports up to 150 lbs. On Sale! Buy now and save! To protect our brand reputation, we have NOT authorized any other sellers to sell our products on Amazon, including those sellers "Fulfilled by Amazon". Please protect yourself against counterfeits. When you receive the order, please check to see it has the authentic LapWorks brand (that we have applied to every product). If it's counterfeit, you have the right to ask for a full refund.