Based on this product's specifications, here are some alternatives and similar models
Heat shrink tube DeLOCK 18978
Summary description:
The DeLOCK 18978 heat shrink tube is 1 meter long and has a maximum diameter of 2 cm. It provides excellent insulation and protection for wires and connections, ensuring durability and reliability in various applications. Ideal for electrical work, it shrinks when heated, creating a tight seal that prevents moisture and dust ingress.