Material: Double sides PU leather and Chromed Zinc Alloy Weight: 80g Base of the spike is 10mm dia and 30mm tall. Absolutely cool looking! Upgrade your helmet game with the Marskeleton punk mohawk sticker will attract so many eye sights! Heavy metal texture studs, shaping the men steely temperament. Can be faced either forward or backwards. Not only for motorcycle helmet, but also great for AVT/ski/skate helmets. Actually, it can be applied on many object surfaces: metal, plastic, wood, glass, leather etc. Your application scenarios are warmly welcomed to share on the web as a feedback to us. Helmet is NOT included, helmet is sold separately, please search our helmets in our sotre.