Now you can have the look and feel of an Artistic styled boot with the convenience of size adjustability! The Rookie Butterfly rollerskates are available in sizes UK 12-2 and 3-5 (EU 31-34 / 35-38). They feature a unique adjustment system within the boot that is easily used to fine tune the size of the skate through its size range. Instructions for use: - Pop down the lever/screw at the back - Turn the screw until you reach the desired size as indicated on the guide above the chassis. - Please note the size guide numbered 1-4 refers to the 4 sizes that the skates can be adjusted to. For example in a Junior 12-2, size 1 is JNR12, 2 is JNR13 and so on. - Once you\'ve reached the desired size, flip the lever back up to lock in place... - ...then you\'re ready to roll.