Equations That Changed the World Eco Martingale Collar Size:Medium super-soft Atomic Energy Graphic Tee

super-soft Atomic Energy Graphic Tee for your favorite nuclear physicist

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

earthy aroma of humus and pine

In addition to being printed with glorious full-color designs in over 20 different scientific disciplines

Perfect for all your journey essentials

Equations That Changed the World Eco Martingale Collar Size:Medium super-soft Atomic Energy Graphic TeeThis 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