motorcycle spring roller wheel chain tensioner adjuster regulator atv pit dirt bike <br /><br />100%  and high quality!<br />size: show as the picture<br />color: silver<br />meterial: alloy<br />easy to carry， used in almost applications with chains<br />long lasting working life<br /><br />fitment: fits for use with all chain sizes.<br /><br />package included:<br />1 x wheel chain tension adjuster<br />1 x spring