Based on this product's specifications, here are some alternatives and similar models
Heat-shrink tubing CellPack 144385, 100 cm length, 1 pc
Summary description:
CellPack 144385 heat-shrink tubing is a 100 cm-long polymer tube supplied as 1 piece for electrical insulation, cable repair and mechanical protection. The tube shrinks when heated to provide strain relief, moisture resistance and improved cable routing in DIY, maintenance and professional wiring tasks.