4inch Rotating Swivel Stand with Steel Ball Annular Lazy Susan Base Turntable 0.23x3.2inch White Pack of 4

Is there any advantages of the product? This rotating swivel stand is mainly made of Acrylic Which is durable reliable not easy to deform or break can be applied to your home for a long time; The balls on the back of the product are made of steel How to use it? Put the panel on the top of the swivel stand turntables and then show your product it is 360° rotating and choose any angle as you needed. What should I notice? Please confirm the size and the load-bearing before you buy