Nitrous oxide keychains from Sickspeed. This listing is for one nitrous bottle keychain. Item is real metal for a high quality lasting part. Dimension for the bottle: 51mm (2") tall x 15mm (1/2")wide. Weighs in at 4 ounces. Don't forget to check out our other listings for parts and accessories to suit your ride. We are always expanding so keep an eye out for more supreme quality products from Sickspeed. Purchase includes a die-cut vinyl decal: Check out the manufacturer's website for more info and pics.