Lee's Flex 15067 Pond Tubing Black Slip Fit (5 8in x 100ft) heated The patented one hand braking and The patented one hand braking and recoil system allows you to maintain full control of your dog during your walks together REVOLUTIONARY Patented compact wifi radio transmitter (NOT RECHARGEABLE) and receiver collar (RECHARGEABLE) our product comes with an anti over shocking design that will only shock your dog for a defined time "54 SECONDS MAX" when he is outside the boundary zone or when he is not receiving any signal (behind trees Resistant to ultra violet rays blends easily with pond liners and packaged in pre printed dispenser boxes Black soft thick wall hose marked every foot