With rugged, durable construction, this kit fits transducers of all major manufacturers, and allows mounting on the lower unit of bow- or transom-mount trolling motors.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.