If you purchase with other items, we will discount 150 yen for each item from the second item onwards. Please let us know if you would like this. (*^^*) Example: ▶︎ If you purchase 2 items → 150 yen discount If you purchase 3 items → 300 yen discount Size: ▶︎ Approximately 6.5mm to 7mm Inner Diameter: ▶︎ 15.5cm