Spare HX2 Heelys wheel kit designed for a pair of HX2 shoes. The HX2 series are Heelys featuring 2 wheels per shoe.
Notice:
Small accommodates Heelys: 11-5 (UK) / (29-36,5 EUR)
Medium accommodates Heelys: 6-7 (UK) (38-39 EUR)
To determine the appropriate size for your specific model, simply remove your wheel or plug from the shoe and check the indication.