Rings specifications: each crystal ring measures approx. 1.22 inches in inner diameter and 1.54 inches in outer diameter, normal size for most cars Come with adhesive tape: each crystal ring has an adhesive tape, which can provide you convenience for the process of installation, just peel off a side of tape and stick to bling ring, then peel the other side of tape and stick to button tightly Material: these crystal rings are made of zinc alloy, decorated with rhinestone crystal, which is shiny and sturdy, can easily draw people's attention; Note: small items, please keep away from kids under 3 years old Wide ranges of usage: these accessories are good for those people who love bling things, suitable for car engine start, stop push buttons, steering wheels, radio switches, stick shifts switches, car a/ c knobsand and more Quantity: 6 pieces of crystal rings in silver color, can meet your various needs; Notice: please check the rings size to see whether they fit for your cars