Hello, for sale 4 Chrome Plated Brass Tire Valve Caps Featuring Powerpuff Girls. The Caps measure near 1/2″ x 1/4″. The Photo Stone Emblem Picture measures 5/16″. In Millimeters it measures 15mm x 10mm with an 8mm Photo Stone Emblem. Standard Tire Valve Cap Size. Items are scanned and may appear larger than actual size. They are shipped in a 2″x 2″ poly bag. Thanks for looking. Questions Welcomed.