Sefer Petichat HaKeilim (Landau Edition) / פְּתִיחַת הַכֵּלִים

A Hebrew-language sefer that presents halachic discussions and rulings related to opening containers on Shabbat. It includes explanations, practical guidelines, and illustrated examples of different types of items such as cans, bottles, and packages. The content focuses on common household situations and provides organized references for study and review.