The perfect hoop in two perfect size options for everyday wear! Materials: 14K Gold Plated Brass Silver Plated Brass Hypoallergenic and Nickel FreeSize:Available in two sizes: S Diameter: 1.5cm / 0.59"S Thickness: 0.3cm / 0.11.2"M Diameter: 2cm / 0.79" M Thickness: 0.3cm / 0.12"This item comes with a one-year warranty.Greeting card and/or gift receipt for exchange is available with purchase at checkout.