Summary:Tractor for neck ache is used for the traction of cervical vertebra. The product is capable of releasing the symptoms like ache of cervical vertebra.Features:►    The inner part of A Type is made of polyester composite, which is aging resistantanti stress, high in tenacity and fast inflating. And the outer fabric can be unpackedfor cleaning.►    The inner part of the B Type and C Type are made of composite with highelongation and the outer of main part are knitting flocking.Using method:►    Wear the product on the neck, adjust to a proper size and fix the bonding cingulum,and keep the direction of the boning cingulum to the front►    Tighten the air valve, push the steel ball in the latex pipe back into the air of pipebag valve, and press the latex ball repeatedly to inflate the product to a mostcomfortable size. After that, push back the steel ball to prevent air leakage.►    Select the different inflated state as one's health. The smallest size can be treatedfor a long term, a small size middle size can be treated for 20 to 30 minutes andthe largest size can be used for only 1 to 3 minutes.►    After use, push the steel ball in the latex pipe back into the air of pipe bag valve,and loosen the air valve cap to deflate it. Then take off.