The lot of 10 adjustable thickness acrylic mounting brackets are the perfect option that allows you to create a socially distant work environment. The cubicle top clamp mount bracket fits on partitions up to 2.12" thick without the adjusting knob and up to 1.88" thick with the adjusting knob. It's made from an aluminum alloy and it comes standard in White. Quality guaranteed by a 5-year manufacturer's warranty.