Made from Solid 925 Silver with thick Rhodium Plating, these feel nice and light on the lobes. 

Details:
Inner Diameter: 12.9 mm.
Outer Diameter: 17.9 mm.
Width: 3.8 - 6.0 mm.
Weight: 4.5 grams

Made from solid 925 Silver with thick Rhodium Plating
These are also nickel-free and are perfect for those with metal sensitivities.