The product is a set of new Razor replacement scooter spark cartridges designed for use with the Spark, 2.0, and FlashRider 360 models. Made by Razor in the United States, these black spark cartridges are suitable for those models and feature a single unit quantity. They do not have a California Prop 65 warning. Perfect for maintaining or upgrading your Razor scooter, these spark cartridges are a convenient and high-quality option for enhancing your riding experience.