Pair of old roller skates, with four wheels, adjustable to the size and width of the foot, using a key provided.
Closure with a leather strap.
Brand “Polar Range”, in their original box. Made in Germany.
Usual wear.
Probably dating from the 1940s.

26 cm in length
20.8 cm minimum length
Max size 39
(An 11 wrench is required for the length; the wrench provided is for the width.)