ENG1012 Features: * Alu-alloy board rider * Innovative kiddy board * Can turn your carriage or stroller into a double and give your toddler an imaginative and fun ride * Very convenient to be attached on / detached from most of strollers, buggies and prams (10 mm axle, 25.4 mm round and up to 45 mm oval tube) * Easily installed or un-installed Includes: * Three different sizes of adaptor included and its width and height can be adjusted to match customer"s stroller