Based on this product's specifications, here are some alternatives and similar models
Erko RTCK 18-6mm Thin-Walled Heat Shrink Tubing with Adhesive, Black, 1m
Summary description:
The Erko RTCK 18-6mm thin-walled heat shrink tubing features an internal adhesive layer for secure sealing and insulation. Designed for electrical applications, it provides excellent protection against moisture and mechanical stress. With a shrink ratio of 3:1, it is ideal for cable repair, wire bundling, and environmental sealing. The 1-meter length ensures versatility for various professional and DIY electrical installations.