Based on this product's specifications, here are some alternatives and similar models
Workbench Clamp EPM E-400-0102 — 250 x 50 mm woodworking clamp
Summary description:
EPM workbench clamp model E-400-0102 is a woodworking clamp with a 250 x 50 mm clamping area designed for holding boards and assemblies during cutting, gluing and assembly. The clamp provides secure, even pressure across the jaws for typical carpentry and hobby woodworking tasks. Suitable for bench-mounted use and temporary securing of workpieces.