Silver Aluminium Alloy Desk Mounted Adjustable Grip with Protective Silicone Pads Dimensions: 40mm x 58 x 30mm Suitable for Panel 3mm up to 8mm Divider Material Available: Custom Printed Glass, Aluminium Composite Panel & Acoustic Polyfibre sheeting & Perspex Recommended spacing of 700mm Centre to Centre between each Clamp Sold as Single Units Maximum Panel Height: 500mm. After comparing online prices, www.marvel.co.za should be the cheapest on this product.