Chemistry Eco Martingale Collar Size:Medium It'll look smart at your

It'll look smart at your next lecture

An umbrella adorned with vibrant yet deadly plants

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

Select the length based on the height of your walls

Chemistry Eco Martingale Collar Size:Medium It'll look smart at yourThis 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).