Smart Kid Belt, a product to protect children's safety, is a set of two authentic belts. - Product Name: Smart Kid Belt - Target Weight: 15kg - 36kg - Target Age: 3 years old - 12 years old - Included: Set of 2 - Instruction Manual: Included One belt was installed in a car for a few days but not used. The other one is unused. It will be shipped via Yu-Packet Post, so the box will be flattened. Thank you for your understanding.