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
Can Collapsible Metal with a black, No: 8 stopper with 1 hole & 1/4 fitting with 1 3/4 in opening with cap. Used for Charles Law or pressure principals within the class room, Measure: 9 3/8x6 5/8x4 1/8in, for industrial or commercial use, Lightweight and durable
Electrophorus - Demonstration, Comprises a thick plastic base with four rubber feet alongwith with 18 cm diameter aluminium plate with an insulating handle. Produce a strong spark repeatedly, without recharging. 18 cm diameter aluminum plate