Table Accessories The Premium Plus desk clamps are for use with individual clear PVC desk divider screens only, to provide additional stability. The addition of Nobo Premium Plus desk clamps provides enhanced stability when using a desk screen in any environment. The clamp easily attaches to the screen and can then be used to secure it to any desk. No fixing holes are required, either on the worktop or screen. Each clamp is adjustable and are suitable for a desk thickness of between 15-30 mm and they can also secure a screen with a thickness of between 4-30 mm. The clamps are supplied as a pack of 2 clamps.