Based on this product's specifications, here are some alternatives and similar models
Bookend MAUL 3501082 White Steel
Summary description:
The MAUL 3501082 bookend is made of durable white steel with a thickness of 0.8 mm. Its dimensions are 85 x 140 x 140 mm, making it compact yet sturdy. Each pack contains 2 pieces, providing excellent support for your books while adding a modern touch to your workspace.