Heat Shrink Wire Connectors light 200pcs Heat Shrink Wires Connectors was design to protect the wires connections from Danger of leakage. Inflight heat shrink connectors have three size which can be used to connect the wires from 22AWG to 10AWG. 1mm thick red cooper barrel can increase current flow and avoid the shortage for poor connections. Nylon hot-melt adhesive with waterproof gel provides excellent waterproof performance.