Astronomy Eco Martingale Collar Material_rPET Titanium alloys – like this

Titanium alloys – like this pen – are often used in jet engines

this bottle is made to travel with you for a lifetime

each bloom a striking reminder of nature’s hidden dangers

or draft your latest astronomical theories in this Star Map notebook

Make notes on your backyard bird watching

Astronomy Eco Martingale Collar Material_rPET Titanium alloys – like thisBring the stars a little closer to your out of this world fuzzy 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).