24mm-8mm Adhesive Lined Polyolefin Heatshrink Sleeving. Adhesive Lined. High quality 3:1 dual wall (adhesive lined) heat shrink tubing. Packaged in 1.2 metre lengths. Available colours: black only. Shrinks down to a 3-1 ratio = 8mm •Inside diameter 24.0mm (as supplied), 8.0mm (after recovery). •Wall thickness 1.0mm (as supplied), 2.54mm (after recovery).