Traditional roller QUAD skates are equipped with four wheels that are not in
line as the in-line skates. Suitable for beginners and advanced skaters. Level
of optimal sport loading: 3 size .: 28 - 17,7cm size: 29 - 18,5cm size: 30 -
19cm size: 31 - 19,5cm size: 32 - 20,3cm size: 33 - 21cm size: 34 - 21,7cm Test:
comparison of leather and PVC skates -
https://www.youtube.com/watch?v=2lzkErL5cL8