Chemistry Eco Martingale Collar Size:Medium Pack an extra hat and

Pack an extra hat and your favorite forest-inspired notebook and head out for some tree exploration

Select the length based on the height of your walls

This Blue Morpho looks equally at home on your suit jacket

Here's a travel flask dedicated to some amazing ladies who helped change the course of scientific history

It'll look smart at your next lecture

Chemistry Eco Martingale Collar Size:Medium Pack an extra hat andThis fun blue collar features a chemistry design that's perfect for a chemist's best friend! 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 soda bottles).