Based on this product's specifications, here are some alternatives and similar models
Heat shrink tube DeLOCK 20858 25 mm x 130 mm black silicone 2 pcs
Summary description:
DeLOCK Cold Shrink Tube 20858 is a heat shrink tube made of black silicone. It measures 25 mm in diameter and 130 mm in length. This product is designed for insulation and protection of electrical connections, providing a reliable seal against moisture and dust. Ideal for various applications in electronics and electrical engineering.