Based on this product's specifications, here are some alternatives and similar models
Combination wrench Proline 18 mm, model 35478, length 235.4 mm, 1 piece
Summary description:
Combination wrench Proline 35478, 18 mm jaw size, single-piece hand tool with overall length 235.4 mm. Designed for tightening and loosening hex fasteners in automotive, maintenance and assembly tasks. Steel construction delivers torque for general mechanical work; suitable for professional workshops and DIY applications where a reliable 18 mm wrench is required.