HOOKUPZ* 2.0, Universal Smart Phone Optics Digiscoping Adapter, Optics with an eyepiece of 25-58mm, For Binoculars, Spotting Scopes, Monoculars, Telescopes, Microscopes, Incompatible for riflescopes and tablets, Fits ipods, iphones, Galaxy, Motorola and HTC phones
Hollow Acrylic Prism, cube, With Stopper - For Physics and Light Experiments, Hollow inside allows for liquid to be poured into cube, Great for physics classrooms, made from acrylic plates properly cemented together, Excellent tool for optical experiments, Size: 25x25x25mm