This is replacement Rubber Fuel tubing for all of our Mini Pocket Bikes. We sell it in different lengths, from 1 ft. and up - just buy your desired length. 3/8" outer diameter, 1/4" inner diameter, each section of tubing comes with two free butterfly clips to ensure a good seal with the gas tank / fuel filter/ carburetor nipples. Fits the Cag, MX3, MTX, and RSR.