Balt Desktop Privacy Panel, 21.5-Inch Pebbles Vinyl Quarry Panel is 21.5-Inch x 17-Inch. Available in Pebbles Vinyl Tack board in Lt Quarry. Attach to any work top up to 1 1/4-Inch thick without using any permanent hardware or damaging surface. Attach and reattach with ease. Outfit with an optional set of three accessory trays (SKU 661PT) and combine with any of the various other sizes and surface options.