Freezstick is a long-lasting, fillable dog chew that keeps anxious pups calm. Available in small and large sizes, suitable for dogs up to 60 lbs and 140 lbs, respectively. Crafted from 100% natural rubber, non-toxic, biodegradable, and environmentally friendly. Veterinarian endorsed and a great training tool to redirect chewing behavior. Easy to clean, dishwasher safe, and comes with ready-to-use fillers. Fit tough chewers