Vans Racing Tunnel Hulls are some of the most sought-after racing tunnel hulls in the world today. The Lynx 21 Tunnel has won more races and broken more World Records than any other 21 racing hull available today. The shipments will now include a wooden radio box kit, ($35 value). Eventually we will also have fiberglass radio boxes available, at which time, there will be a second option to add that one to your order as well. Please note: We are trying to keep these boats in stock at all times but with the recent surge in the interest of running tunnels, there could be a slight delay of a few days waiting on new stock. Vans Racing will soon be offering the new TABOO MR-300 Mod 21 Racing Tunnel also in fiberglass. Tunnels are back!!