Equations That Changed the World Eco Martingale Collar Size:Medium Elevate your invites or important

Elevate your invites or important letters with this Lone Tree Wax Stamp

Decorate your space with an earth colored and slate blue art print

Perfect for all your journey essentials

earthy aroma of humus and pine

or keep records of your forraging adventures within the pages of this elegant notebook

Equations That Changed the World Eco Martingale Collar Size:Medium Elevate your invites or importantThis math inspired collar is great for accessorizing your favorite fuzzy friend while you work on your problem sets. Martingale collars are what you need if your dog's head is smaller than its neck like a greyhound or a whippet, any dog prone to slipping their collar, or dogs with delicate tracheas and necks like chihuahuas and pomeranians. Our Martingale collars are available in three sizes, adjustable, and built with rPET webbing (made from recycled