Hafele TV Swivel Full Extension, Steel Black Overall dimensions: 30" Long x 16" Wide x 2" Deep, Swivel size is 28 3/8" Long x 15 3/8" Wide Swivel radius is 33 1/4", Pivot range 103-degrees Material: Slides: steel, galvanized, Platform: steel Not for use for flat screens. To use for flat screen tv, you would need to secure the base of the flat screen down to the shelf used on this TV mount