[18K GOLD PLATED EARRING]: Stud earring made of cubic zirconia+18k gold plated brass, bright color and lightweight, not easy to rust or fade, convenient to carry and store.[EARRING FINDINGS+EARRING BACKS]: Including 30pcs gold plated stud earrings and 30pcs butterfly earring backs. All storage in a small plastic box: 2.67x2.04x0.43inch(6.8x5.2x1.1cm).[STUD EARRING WITH LOOP]: Earring studs have an loop, you could attach beaded dangles, jump ring and chain to make new drop earrings.[SIZE]: Flat Round: 5.5x3mm, hole: 0.8mm, pin: 0.7mm; trapezoid: 10x3mm, hole: 1mm, pin: 0.7mm; teardrop: 9.5x5.5mm, hole: 1mm, pin: 0.8mm.[BEST GIFT]: You can use stud earring findings with loop to make some delicate handicrafts as presents to your family members and friends on Valentine's day, HalloweenChristmas, New Year or birthdays.