This square, rectangle and square earring is sold individually. The rectangle is 1/2"x1/4", the square is 3/8"x 3/8", and the chain is 1.1/4". Materials: 14k gold or rose gold-fill (14k gold over brass core/no nickel) and sterling silver (.925). All materials are hypoallergenic. This earring is handmade in our Upstate New York production studio.