3 and 5 Position Channels from Buyers Products connect your trailer's coupler or tow eye at the correct height for level towing. The towing components simply bolt onto the channel at the height that meets your need. Each channel is built of strong, 5/16 in. thick formed-steel. It is welded to your trailer tongue. The 5 position channel also includes gussets you can weld on for extra support. A bolt and nut kit is available and is ordered separately.