The key ring allows you to attach keys and other accessories. 

Feature:
*Color: Silver
*3 Measurements: 20 mm / 25 mm / 30 mm (diameter) 

*Material: Stainless Steel

*Pack: 10 pack, 20 pack, 30 pack, 50 pack, 100 pack....more

*Shipment: USPS first class 3-5 business days for delivery in U.S. shipping.