This is the .187" Drive Dog with Set Screw For the AquaCraft Revolt 30 Mono Boat FEATURES: Metal construction INCLUDES: One drive dog One setscrew COMMENTS: This drive dog can be installed on AquaCraft Revolt 30 FE Mono Rx-R (AQUB25**) AquaCraft Revolt 30 FE Mono 2.4GHz RTR (AQUB24**) 7/31/12 pjw ir/jxs