PEPPERLONELY Brand 10PC Antique Silver Heart Stoppers W/Rubber Beads Fit European Bracelet 7/16 x 3/16 Inch ( 11MM x 5MM ) Quantity: 10PC Size: 7/16 x 3/16 Inch ( 11MM x 5MM ) Hole size: 2.6mm(fit 3mm snake chain) Thickness: 5mm Material: Zinc metal alloy+Rubber(Lead and nickel safe)