Used with the High Rise Clamp Assemblies. These risers allow you to quickly piece them together to the proper height for clamping the work piece. The risers are attached to the fixture plate using a Long Quick Lock Screw. The risers then can be pieced together using the couplers that are included in the riser assembly. These risers can also be used with the Sliding Mount Units using the Short Quick Lock Screws or Quick Lock Buttons. The riser is made from A6061S-T6 aluminum with a natural anodized finish. The coupler is made from SAE-1045 alloy steel, heat treated with a black oxide finish.