<b>How to use Sanwillco Inflatable Protective Collar:</b><br>1.Insert your pet's everyday collar through the inner ring loops of the collar.<br>2.Inflate the collar with inflator (pinch & blow). Please put the zipper together when inflates. Inflate until it feels full.<br>3.Fasten everyday collar onto your pet and stick the strap that should be placed at the back of the neck then adjusted it for a perfect fit.<br>4.You can take the air bag out and wash the cloth<br><br><b>Soft & Comfortable</b><br>The premium inflatable collar is great for pets recovering from surgery or wounds and it will not mark or scratch furniture<br><br><b>Adjustable</b><br>Always monitor a pet post-surgery to ensure collar is working properly.<br><br><b>Lightweight</b><br>For larger breeds with longer limbs, or breeds in between sizes, always size up<br><br><b>Easy for storage</b><br> Designed for pet use only. Not intended to be used as a flotation device.<br><br><b>Size The inner ring The outer ring weight</b><br>S 1.6''-2.3''(4-6cm) 7''-12''in(18-30cm) 128G<br> M 2.7''-3.9''(7-10cm) 10''-14''in(25-36cm) 230G<br>L 4.3''-5.5''(11-14cm) 15''-19''in(38-50cm) 300G<br>XL 5.9''-7.1''(15-18cm) 19''-25''in(50-65cm) 352G<br>