ShrinKit 321 is a family of three heat shrink tubing assortments in attractive and handy assembly kits. The range consists of Shrinkit 321 Universal, Shrinkit 321 Basic and Shrinkit 321-A (a dual wall tubing). With their ideal shrink ratio of 3:1 these products re-place many differently sized tubing solutions by fitting almost any heat shrink requirements. Choosing the required product is simplicity itself as the tubings are clearly identified by size, length and content printed on every compartment of the assortment boxes.