Nite GlowRing - Safety Marker - Tritium - (Clear Case) - 9 Colours Colour:FireFly Super Kit Marker (Pink) Mathematician-designed and teacher-approved

Mathematician-designed and teacher-approved

Detailed specifications from our supplier are at the bottom (for those interested)

convection

the whole row of 16 blocks could be all one colour)

Perfect for classrooms and science projects

Nite GlowRing - Safety Marker - Tritium - (Clear Case) - 9 Colours Colour:FireFly Super Kit Marker (Pink) Mathematician-designed and teacher-approvedPLEASE NOTE: THE PRODUCT PHOTOS ARE FROM AN ANDROID PHONE (ONEPLUS 5T) AND ARE UNALTERED. HOWEVER, THE CAMERA SEEMS TO PICK UP THE LIGHT BETTER THAN THE HUMAN EYE THE GLOW RING MAY APPEAR A BIT LESS BRIGHT TO YOUR EYES THAN WHAT APPEARS IN THE PHOTOS. We are also using some long exposure time lapse photos with permission from one of our customers, Dalton Herrewynen, a professional photographer. Check out more of his beautiful work here. PLEASE NOTE: