roller skating movement security problems is the most caring, most parents to coach cheng for this, we also do consulting, coach is very carefully points out: roller skating movement is a kind of risk

the rudiments of roller skating:roller skating is a master of sports extremely easily, anyone can learn it quickly. but for many people, contact roller skating for the first time, will produce a psych

in rollerblading before each use, should carefully examine the screw nut, all loose to tighten them one by one.before use, first to each wheel rotating several times, in order to check their rotationa