From junipurr.com: DESCRIPTION The Gold Bee piece is a favourite in body jewelry, especially ear jewelry projects. They can be worn stacked, paired with rings or other studs. This threadless decorative end is available in 14 karat Yellow Gold, White Gold and Rose Gold options. They measure 8mmx6mm and can be used in any piercing that is fit with a threadless post from all major jewelry vendors. 6.75mm x 5.20mm