Installs onto the clamps found on most Park Tool repair stands to more securely hold D-shaped seatposts by converting one jaw profile to a flat surfaceDesigned to fit over a clamp`s existing jaw covers and is easy to remove and install by hand, making it a convenient accessory for your repair standCompatible with the following repair stand and clamps: PCS-9.2, PCS-9.3, PCS-10.2, PCS-10.3, 100-3D Micro-Adjust, 100-5D Micro Adjust, 100-25D Micro-AdjustClamp Adapter1971PCS-9.2, PCS-9.3, PCS-10.2, PCS-10.3, 100-3D, 100-5D, 100-25DUPC/EAN/GTIN: 763477516473