Based on this product's specifications, here are some alternatives and similar models
Hikoki saw blade set for sabre saws RPM30B/S123XF 150 mm, 5 pieces
Summary description:
Replacement saw blade set compatible with Hikoki RPM30B and S123XF sabre/jig saw models. Each blade is 150 mm long; package contains 5 pieces. Designed for cutting applications suited to the specified sabre saw types, these blades provide a standardized length for general-purpose cutting tasks and blade replacement.