98mm Loki Convolute XX grade Phenolic Liner and Kraft paper Casting Tube for 3.50" ID cases - Casting tube ID is 3.238".
These heavy duty liner tubes are hand down the best you can get for snap ring 98mm hardware and are a step above the LE grade. They use high quality kraft paper casting tubes and come in lengths of 47.5". They will only fit hardware made from tubing with a 3.5" ID. Older X and LE grades are shown below.
