These are the accessories that came with the magnetic sheet I purchased. Unopened and unused. One piece measures 2.2cm x 2.2cm. The corners are rounded, and I think this product can be widely used as office supplies, educational toys, and learning materials. Instant purchase ○ No returns or exchanges Anonymous shipping I hope for a pleasant transaction. #OfficeSupplies #EducationalToys #LearningMaterials #CalculationSheets #MagneticSheets #Whiteboards #MagneticToys #AlphabetToys #KitchenGoods