✨ Fast Shipping (Within 24 Hours) ✨ ☘️ Unused Item, Free Shipping, Immediate Purchase Welcome ☘️ Many other items are available on a first-come, first-served basis! 【Size】 16-18mm ・ While the device is attached, it does not affect shoes or bathing. This product is made of high-quality stainless steel and elastic latex, and water will not affect it.