[COMPARTMENT EAR NUT BOX]: The assorted earring backs are stored in plastic compartment box, easy to find the ear nuts you want and pick them, 8 styles earring backs can fit for most earrings, no matter you want small ear nuts or large earring backs, the assorted earring backs kit can meet your needs. [1 BOX 320PCS EARRING BACKS]: You will receive 320pcs earring backs in 8 styles, 40pcs per style, fixed mixed. A compartment box is included to help you store and protect your earring backs & findings. [PREMIUM MATERIAL]: Assorted ear nuts are made of different material. The soft earring backs are made of silicone, the clear but hard earring backs are made of plastic, the silver and golden parts are made of stainless steel. [SIZE]: The largest ear nuts, flat round with stainless steel part, 11.5mm/ 0.45 inch in diameter, hole, 0.8mm. The medium ear nuts, 5x5mm/ 0.2x0.2 inch, hole, 0.7mm. The smallest ear nuts, the flower shaped ear nuts, 3x3mm/ 0.12x0.12 inch, hole, 0.5mm. The ear nuts with elasticity can fit for most earrings. [WIDE APPLICATION]: The silicone earring backs can be used for stud earring findings and dangle earrings. With the elastic material, the ear nuts are suitable for most earrings. The earring backs can help you protect your earrings well. Large quantity silicone earring backs, perfect for daily life earring backs replacement.