We hope this cool t-shirt will bring you some joy! It features an image of radio waves from pulsar CP 1919, taken from The Cambridge Encyclopaedia of Astronomy. Upgrading your wardrobe is one of life\'s little pleasures! This is a great t-shirt for lovers of science and maths, although whether it will help you with your long division is unknown. This is a Pulsar CP 1919 t shirt, not an officially licensed product. #8ballbestseller Sustainability Message All 8Ball Originals garments are WRAP certified, REACH compliant and Fair Labor Association accredited. They are printed in UK using Oeka-Tex and GOTS certified water-based inks.