These classic leverback earwires are made from a lead-free, nickel-free, and cadmium-free brass.  Features approx. 1mm open loop at base. Sold per bag of 20 earwires.    

These classic clip-on findings are made from silver-finished brass, and feature a 5mm half-ball with an open loop at the base. Hole Size: about 1.5mm Sold per bag of 4 pieces (2 pairs).