1. These chips are completely transparent and suitable for projector displays. They are useful for learning to count, classify, group, and perform addition and subtraction operations. 2. Accessories can be combined into different shapes, which helps to cultivate children's imagination. 3. The bingo chips are made of materials that are durable, safe, and environmentally friendly. 4. The counting chips have a diameter of about 19 mm and a thickness of about 2 mm. 5. They are suitable for learning scenarios such as classrooms, kindergartens, and homes. 6. Item Name: Bingo Chips 7. Material: Plastic 8. Size Details: Size: about 19 mm × 2 mm / approximately 0.75 inches × 0.08 inches 9. Precautions: 1. Due to differences in lighting and screen settings, the color of the item may vary slightly from the picture. 2. Due to different manual measurement methods, slight differences in size are allowed. 10. Package Content: 100 bingo chips