Q collar concussion prevention. My son wore for football season but outgrew. It’s in great condition with measure device and case. It is a size 11. Website can assist in finding accurate size.
https://q30.com/products/q-collar?tw_source=google&tw_adid=700810898827&tw_campaign=21338869327&tw_kwdid=kwd-342262670085&gad_source=1&gad_campaignid=21338869327&gbraid=0AAAAABPQVKtkF88RCXiOALKwTP2d_C50j&gclid=CjwKCAjwprjDBhBTEiwA1m1d0rWgms_1fFPtCCDEpE06hT1LqtK1pJusuz7BajKVGugdvOG6z6pycRoCy2cQAvD_BwE
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