[ Applicable ] The Hull Wiring Kit is perfect for installing fish finders, lighting kits, motors, and anything that involves running wires in the hull of your kayak or boat. [High-quality materials] This through hull wiring kit is made of plastic, rubber and steel. It has better wear resistance, excellent corrosion resistance, tear resistance and compression resistance. [ Application ] This kit is perfect for popular removable pods like the Bonafide Kayaks Dry Pod or Wilderness Systems Flex Pod, which often mount fish finders and transducers. [ Include ] Included are eight rubber inserts with common hole sizes, four blank inserts, two nylon grommets, and two sets of hardware. [ Satisfaction Guarantee] If you have any questions about our products please contact us at first time. We are glad to solve the problem you meet .