Specifications: <br> Small size (9mm): 9mm inner diameter, 10.5mm high <br> Medium (12mm): 12mm inner diameter, 10mm high <br> Large size (15mm): 15mm inner diameter , 13.5 mm height <br> Note: Due to the manual measurement, there are small <br> deviations. <br> Descriptions: <br> Color: transparent <br> Material: plastic <br> Quantity: 300 pieces <br >