Our 18K jewelry is made entirely of 18K material, not 18K plating. Carefully handmade in a reliable domestic factory. We manufacture in the same factory that supplies jewelry to major department stores, so we are confident in the quality. ___ This is a substantial 18K bail. It's sized to accommodate a very thick Kihei chain, approximately 13mm wide. The mirror-finish gold complements any pendant. Having one of these is very convenient for future arrangements. If you have any requests, we can also do processing here, so please comment. ___ ◆Size (mm) Length: 15.5 Width: Top 7.9, Bottom 5.2 Thickness: 8 Inner Diameter: 13.2 x 6.2 x 4.9 Weight: 1.47g ◆The hole is quite large, so it should fit most manufacturers' necklaces, but please check the size for large or thick necklaces. Other 18K, 10K and other parts are here ↓↓↓ #Rin's Shop Jewelry Parts List 18K 18K gold K18 k18 10K 10KYG 14K 18KYG 14KYG Earrings 18K earrings k18 accessories 18k accessories Necklace Necklace top Yellow gold K18 18K gold 18K 750 YG PG WG Handmade Jewelry Jewelry handmade Handmade accessories Bracelet Marukan Marukan Chain Bail Fastener Thick bail for men ◆Please see the profile for seller information and shipping information♪