High Quality Material : The multiple necklace spacer clasps are made of high quality brass, They are sturdy, not easy to deform and break, and with sleeking and polishing process, looks more glossy and of textural quality. Multiple sizes: width about 2-12 mm, length about 17-25 mm, thickness 5.5 mm, hole 1.9-2.3mm, one pack of 2 piece/style, a total of three styles, our products are rich in styles, you can choose from them. Easy to Use: This spacer own is a Clasp - it opens the tube by pulling it apart, then closes it by sliding the button made it back together - each half come with number of chain rings, you can add bracelet or necklace on it. DIY Project: Practical handmade jewelry, you can use them to DIY a variety of necklaces and jewelry, or you can share them with friends and family to show your unique jewelry charm. Beautiful Gift: Necklace separator for layering is beautiful gift choice for girlfriend, wife, families and friends on Christmas, Thanksgiving Day, birthday, New Year, Valentine's Day, Mother's Day, anniversary, wedding, and more.