I have spent major money on boots for my basenji. All of the Velcro type dog boots will eventually come off in deep snow and the Velcro gets worn out. These are shaped like a balloon but they are not latex and do not have the powder inside like cheap balloons. These are quality rubber and very safe for your precious dog. Yes, they are disposable and will after many many uses need to be tossed. You do get a pack of 12 so three sets. For the money, they are well worth it. They never come off until I take them off. Waterproof 100%. It does take some a few attempts until you learn how to easily stretch the opening around your pooch's paw and bam you got your dog well protected against snow, ice, salt and other dogs' messes that lazy dog owners don't pick up. I HIGHLY RECOMMEND this item. As of right now, I have 10 packs in my basenjis surplus of gear. Why 10? Because they are that good!!!!