Helix cool curves maths geometry set helix a08000 the helix cool curves maths geometry set comes in a styled case with moulded handle it includes a high quality metal self centring compass with safety point and a pencil sharpener with a patented anti tamper screw the contents feature stylish designs and the case is made in a complementary colour to make this the essential cool maths set helix a08000 cool curves maths set