The WORKABOUT PRO pistol grip attachment allows users to convert the WORKABOUT PRO to a convenient pistol grip unit. This WORKABOUT PRO pistol grip works with the WA9000-G1, WA9003-G1, and WA9005-G1 and it is compatible with G1 and G2 models. The pistol grip comes with 4 screws and a printed instruction sheet. (Instructions are also available electronically).