1) Bar and ball material are stainless steel, all shapes material are copper and cubic zirconia. 2) Bar size is 20G(0.8mm), length is 6mm, Steel ball size is 3mm. Quantity: 1piece(Single) #jewelry #earrings #stainlesssteel #cartilageearrings #traguspiercing #helixpiercing #20G #helixpiercing #orbitalpiercing #rookpiercing