sporus training wheels, thicken bike training wheels for kids under 70lb with heavy duty stainless steel for 12, 14, 16, 18, 20 inch black [including mounted kit] - black sporus <p>training wheels are an indispensable part for kids bicycle training. it prevents kids from getting injured while they can learn cycling in a safer and much more fun way! </p> <p>in this case, parents need to make sure the wheels are heavy duty and quality enough to protect kids from any harm. </p> <p>☻how to install training wheels</p> <p>(1)pass the stud through the washer and the skid nut, using the wrench to hold the bottom of the stud to prevent it from spinning.</p> <p>then use the socket wrench to spin on the other side to make sure the skid nut is fully tightened.</p> <p>(2)after finishing installing the wheels to the bracket, then you need to install the bracket to the bike. </p> <p>pass the stud through the shim and bearing nut, then use the adjustable wrench to tighten the nut to make sure it ’s fully tightened.</p> <p>(3)now you have successfully installed the wheels. check everything is in place then you are ready to go!</p> <p>☻package includes</p> <p>2*bearing nuts</p> <p>4*washers(2 extra)</p> <p>4*studs(2 extra)</p> <p>2*shims</p> <p>4*skid nuts(2 extra)</p> <p>2*extra bearing</p> <p>2*pu thicken wheels</p> <p>2*brackets</p> <p>1*installation manual</p> <p>☻note</p> <p>please contact us if any of the accessories are not included or you have any problem with the installation, we’ll help you right away. </p>