22-10 Gauge Heat Shrink Tubing Kit. Heat Shrink Tubing Inside Diameter Range: 1/4 In. - 1/8 In., 3/8 In. - 3/16 In.; Size Range: 2.5 In. x 1/16 In I.D., 2.5 In. x 1/8 In., 2.5 In. x 3/16 In., 2.5 In. x 1/4 In., 2.5 In. x 3/8 In., 2.5 In. x 1/2 In.; Thickness (in): 0.01; Wire Range: 22-18, 16-14, 12-11. Dorman offers a comprehensive line of Heat Shrink Tubing for almost any automotive repair job. All our Heat Shrink Tubing is constructed of high-quality materials for long-lasting durability.