【Adjustable Size】 Size 13-19 (Inner diameter approx. 17mm-19mm) The anti-snoring ring can be adjusted to some extent to ensure a secure fit on the finger when worn. The anti-snoring ring is made of pure copper, which is resistant to cracking and rust. 【Precautions for Using the Anti-Snoring Ring】 ● Please wear it 30 minutes before bedtime. ● Avoid continuous use for more than 12 hours. ● This product does not provide immediate results. ⋆┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈⋆ ＊Instant purchase welcome・Midnight silent purchase OK◎ ＊Please be sure to read the profile as well◎ ＊Opened for photography ▶︎ Listed as "Like New"◎ ⋆┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈⋆ #MIA～Silent & Instant Purchase OK Listing List Please understand that the item is stored at home and will be shipped in simple packaging. ▪Please check the actual photos for the condition of the product. ▪To offer the product at a slightly lower price, it may be compressed slightly or shipped without the box due to shipping costs. #MIA～Silent & Instant Purchase OK Listing List Anti-snoring ring, anti-snoring measures, anti-snoring goods, sleep aids, nasal breathing, anti-snoring goods, ring, anti-snoring and insomnia prevention, unisex, good sleep, adjustable, set of 3 21-41 r21