Hi there! Three different lengths available for these TNT S+ air cushion inner barrels; one in each length. 303, 370, 475mm. These inner barrels are unbelievably nice and are comparable to EdGi’s level of polish and performance. We bought these to use in an upcoming project but decided they are simply not a perfect match for our unique project. They’re all 100% unused and brand spanken new in their tubes. Do NOT purchase without messaging first. We need to know which length you want and will adjust pricing accordingly. 303mm: $69.99 370mm: 74.99 475mm: $84.99