Based on this product's specifications, here are some alternatives and similar models
Combination wrench 16 mm Proxxon PR23265 for mechanical and workshop use
Summary description:
Proxxon PR23265 is a 16 mm combination (open-end and box) wrench designed for precision mechanical and workshop tasks. Made by Proxxon, it provides a fixed-size tool for tightening and loosening fasteners where leverage and access are needed. Suitable for general maintenance, assembly, repair work and use with hand tools in automotive and hobby applications.