The RAILBLAZA Transducer Arm XL is designed for kayaks and canoes with high freeboards, and dinghies with a solid transom allowing easy retraction and removal of the depth sounder transducer. With this kit, you can install and uninstall your fish finder transducer in a matter of seconds. No messy adhesives or excessive drilling of fittings required. With the extensive selection of RAILBLAZA Bases (not included), this arm can be easily adapted to fit any kayak, canoe, or dinghy either track mounted or hard mounted.FEATURESEasily install and remove fish finder transducers.We recommend retracting when doing speeds over 9mph.Base not included.