38mm Convolute wound X Grade Phenolilc Liner and Casting Tube - Casting tube ID is 1.212".
These heavy duty liner tubes stand up to heat far better than spiral kraft phenolic liners and are a step above the LE grade. They use high quality casting tubes and come in random lengths between 46" and 49". 38mm Liners will primarily fit Loki Research motors. 38mm Liners will not fit Kosdon, Ellis Mountain, AWM or Gorilla.