Based on this product's specifications, here are some alternatives and similar models
Puzzle wire G3 Racing No. 03 — metal disentanglement puzzle, difficulty level 2/4
Summary description:
G3 Racing No. 03 is a metal wire disentanglement puzzle from G3 with difficulty level 2 out of 4. The portable brainteaser consists of interlocked metal parts that require manipulation and logic to separate and reassemble. Suitable for casual puzzlers and logic training, it is useful for travel, leisure and improving concentration and fine motor skills.