Marsen Energy Heat Shrink Tubing (No Glue) is designed for reliable insulation and protection of wires, connectors, and battery packs. With a 2:1 shrink ratio and made from durable, flame-retardant polyolefin, this tubing delivers a snug fit when heated, ensuring enhanced electrical insulation, abrasion resistance, and strain relief. Sold by the metre in a range of widths, it’s ideal for battery builders, electronics technicians, and DIY enthusiasts seeking professional-grade results. Simply cut to length, slide over the component, and apply heat for a secure finish.