Based on this product's specifications, here are some alternatives and similar models
Ergom TCREL Flexible Thin-Walled Heat Shrink Tubing 4.8/2.4 mm, 10m, Black
Summary description:
The Ergom TCREL is a flexible, thin-walled heat shrink tubing designed for electrical insulation and cable protection. With a shrink ratio of 2:1 and a diameter of 4.8/2.4 mm, it provides a reliable seal for wires and connectors. Supplied in a 10-meter box, this black tubing is ideal for professional electrical installations, cable bundling, and mechanical protection in various industrial and domestic applications.