Package Includes: You will receive 2 pairs(4pcs) of gold earring backs, packed in Jewelry Case. Each earring back is approx. 6.8mmx5mm /0.3x0.27 inch. Material: These earring backs are made of Sterling Silver, which is with high quality and light, no irritation to ears, very suitable for those who have sensitive skin. Application: Great choice for your DIY needs, designed for earring back replacement,earring making posts, earring backs, earring repairing. Perfect Choice: Economical set for replacing the missing backing, don't worry about losing the earring ever again! Great value: These fit very tight and the earrings feel very secure on the ears. Perfect size and amount can meet your needs well. Specification: Color: silver and gold Gross Weight: 10g/0.35oz. Product size: 6.8×5mm/0.3*0.27inch. Package size: 10×7×0.5cm. Package details :2 Pairs × Sterling Silver Gold Earring Back. IF TOO TIGHT. Please put the earring lifters on a flat table. Then insert a card or your fingernail in the back clips to achieve the acceptable fit. IF TOO LOOSE. Use needle nose pliers to push the back clips together until you achieve the desired fit. Be very careful as to not crush the shape of the clips. Great Gift. Perfect gift sharing with your family and friends who always loss backings.