Please keep in mind that not all clamps have the screws to receive a bracket such as this in the same place. This means it may not fit a clamp you have purchased elsewhere. That said, new holes can simply be drilled to accomodate the measurements (outlined below).

This attaches on to a clamp/other surface via two screws (usually supplied with a clamp). The measurements are as follows:

• 165mm length/width
• 220mm diagonal
• 13mm depth/thickness
• 7mm diameter of Screw holes
• 33mm between hole 1 and 2 (from centre)
• 65mm from edge of tray to centre of hole.