Based on this product's specifications, here are some alternatives and similar models
Metal Puzzle Brain Games Einstein Collection EMC2 — interlocking metal brain teaser
Summary description:
Brain Games Metal Puzzle Einstein Collection EMC2 is an interlocking metal brain teaser designed for cognitive challenge and fine-motor practice. Made of metal components, it requires disassembly and reassembly to solve the puzzle. Suitable for teens and adults who enjoy spatial reasoning, patience training and quiet solo play. Compact size makes it portable and giftable.