e-komg dog cone after surgery, protective inflatable collar, blow up dog collar, pet recovery collar for dogs and cats soft (large(12"-18"), blue) e-komg <p><b>size:l<p><b> <p>please read instruction before applying collar to your pet.</p> <p>1.insert your pet collar through the inner ring loops of the cloud collar.</p> <p>2.inflate cloud collar via air valve (pinch&blow).inflate until it feels full,but not hard.</p> <p>3.fasten collar onto your pet and use strap on the cloud collar to close.</p> <p>4.choose the larger one once the size of your pet is between two.</p> <p>5.always monitor the post-surgery pet to ensure collar is working properly.</p> <p>size:x-s diameter:6.1"thickness:2.7"neck circumference:up to 4"</p><p>size:small diameter:7.5" thickness:3.3" neck circumference:6"-9"</p><p>size:medium diameter:9.4" thickness:3.5" neck circumference:8"-12"</p><p>size:large diameter:15.3" thickness:5.5" neck circumference:12"-18"</p><p>size:x-l diameter:16.9" thickness:5.9" neck circumference:18"and up</p>