Roller skates, has device with two plates each of which is equipped with two kinds of opening, where openings are intended to fix platinum plates, and wheels are fixed on plates through opening by fixation unit

摘要

The roller skates has a device with two plates (1), each of which is equipped with two kinds of openings (5, 6). The openings are intended to fix platinum plates (2). Another device constitutes of bolts (8), braces (11) for ensuring rigidity between the platinum plates and plates, and nuts (9). Wheels (7) are fixed on the plates (1) through the opening by a fixation unit. The wheels have a hub with a width of 36 millimeter.