Based on this product's specifications, here are some alternatives and similar models
Notebook Cooler Dell NC031541 for Inspiron 1525/1526 — lightweight portable design
Summary description:
Cooling accessory designed for Dell Inspiron 1525 and 1526 laptops, model NC031541. Features a lightweight, portable design to improve airflow and reduce operating temperatures during extended use. Intended for everyday mobile use and working on the go, it helps maintain performance and comfort by supporting better heat dissipation and providing a stable base for the notebook.