These crystal earrings will dress up any outfit! They are considered an ear jacket, meaning the bottom crystals can be worn with any of your stud earrings like a little jacket for your earring for a different look! After putting on your stud earring, simply slide the crystal jacket onto the post at the back of your ear, then place your earring back and voila! These come with a crystal stud for a truly beautiful look! They measure approximately 3/4 of an inch in length and width. Available in gold, silver and rose gold.