Based on this product's specifications, here are some alternatives and similar models
Gap feeler gauge set HOGERT HT8G330, 0.04–0.30 mm, 9 pieces
Summary description:
Precision gap feeler gauge set by HOGERT, model HT8G330, includes 9 blades with thickness range 0.04–0.30 mm. Designed for measuring valve clearances and small gaps, the compact set provides accurate, repeatable readings for automotive maintenance, engine tuning and mechanical inspection. Portable and easy to use for workshop and field tasks.