Blackwheels Flex Pro Rollers 39-42 (5902659843258)

A system that is used to  adjust shoe sizes.  Just unlock the clasp, unfold the shell and  adjust the size  perfectly to your foot.
There are 4 levels  of size adjustment to choose from 
The adjustment is very simple and does not require the use of tools.
Embossed markings are used to  provide simple information about available options.
Adjustable inline skates Inline skates sizes 39-42 (24.3-26.3cm) Flex Pro Blackwheels
Blackwheels Flex Pro adjustable roller skates, sizes  39-42

Information:
Size: 39-42
Color: gray
Bearings: ABEC 7
Wheel diameter: 84 mm
Wheel hardness_ 82A
Type of wheels: Polyethylene
Skid: Aluminum
Brake: With brake
Maximum user weight: 100 kg