These are now included with new WR5 machines. If you already have Alu Fences, these are a useful addition. Made from plywood, the Fence Face attaches to the aluminium Fence using the M4x10 bolts supplied. Before you tighten the bolts fully, pull the Fence towards you with your fingers and push the Face away. Then tighten. This will eliminate play in the Sliding Bar. Now you can attach sandpaper for a firmer grip on the wood. You can also raise the face into the cutting zone if needed. Sold in pairs.