B<br><br><ul><li><span style="font-family:'Arial'、'sans-serif';" lang="EN-US"><span style="font-size:small;">Material: ABS plastic and elastic band<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></span></li><li><span style="font-family:'Arial'、'sans-serif';" lang="EN-US"><span style="font-size:small;">Contains an adjustable chest mount shoulder strap and head mount strap<o:p></o:p></span></span></li><li><span style="font-family:'Arial'、'sans-serif';" lang="EN-US"><span style="font-size:small;">Adjustable strap provides your best comfort<o:p></o:p></span></span></li><li><span style="font-family:'Arial'、'sans-serif';" lang="EN-US"><span style="font-size:small;">Allows you to capture wonderful video or images from a different angle<o:p></o:p></span></span></li><li><span style="font-family:'Arial'、'sans-serif';" lang="EN-US"><span style="font-size:small;">Perfect for skiing、 cycling、 canoe and other sports activities<o:p></o:p></span></span></li><li><span style="font-family:'Arial'、'sans-serif';" lang="EN-US"><span style="font-size:small;">Compatible with Gopro Hero 3/ 2/ 1 sports cameras<o:p></o:p></span></span></li></ul>