Be comfortable and stylish in Comfy Earrings®. Featuring high-quality round 4.0 mm cubic zirconia stones set in 24K gold-plated 316L surgical-grade stainless steel. Posts are standard width (18 gauge/1.0 mm). Length of post is 6.0 mm long, which is "one size fits most." If you're ordering for small ears, please request free clear spacers in the "order notes." The exclusive screw-on Comfy Earrings® Comfy Flat Back is just 6.0 mm wide and 2.0 mm thick for maximum comfort and balance. It eliminates pressure on your ears and covers the back of the post to protect your neck from painful pokes (even while sleeping)! Comes packaged in a classic gift box. Gem Color: Ruby / RedGem Size: 4.0 mmGem Type: Cubic ZirconiaPost: 1.0 mm x 6.0 mm (18 gauge)Metal: 316L surgical-grade stainless steelPlating: 24K goldEarring Style: Screw-on flat back earringsQuantity: Sold as a pair