The Selectamark BikeRegister UV Covert Marking Kit allows you to mark your frame and bike components with hundreds of microscopic dots printed with your unique BikeRegister ID. The solution is quick and easy to apply, and once dry is virtually invisible. There is enough liquid for around 20 individual marks. The solution contains a UV tracer, enabling the Police to easily locate the marks, and in turn read one of the microdots to determine the unique ID and ownership.Included with the kit is a colourless UV marking kit which chemically etches the coating of your bike frame with your Unique BikeRegister ID, the marking is invisible unless seen under UV light. The kit also contains a durable, tamper resistant warning label and a Tesa label with your unique BikeRegister code. By joining BikeRegister you'll become part of the UK's leading bicycle registration and marking scheme. BikeRegister is used by all UK Police forces and used to search for stolen biken, return them to their rightful owners, and secure convictions. You'll also lower the chances of your bike being stolen in the first place. Thats because our kits deter bicycle thieves, who wont risk stealing bikes that are registered and marked.