Description This handheld electric engraver pen set is made of premium material, which can withstand long-lasting use. Features the plasticmaterial, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color:Assorted Color -Material:Plastic -Size:4.00X3.00X3.00cm/1.57X1.18X1.18in - The motorcycle helmet horn is made of plastic material, which is strong and durable, not easy to deform and break, and is not affected by the weather. - First you need to install the suction cup on the bicycle helmet horn, then stick it on the smooth helmet, press it for 10-30 seconds, the horn will stick to the helmet. - Motorcycle helmet horn ornaments can perfectly decorate your motorcycle helmet, make your helmet look cooler, and make you the focus of the crowd when riding. - Comes with suction cups and stickers, strong suction, not easy to fall off, can meet your daily use needs. - The motorcycle helmet trim is suitable for most smooth helmets, such as bicycle helmets, ski helmets, motorcycle helmets and more. Package list: 4 x horns 4 x suction cups 4 x stickers