US$ 19.75
This is friendly
Polystyrene electrolyzer with a transparent cone-shaped cup over a banana-socket base
drawing both DC and AC simultaneously with short-circuit protection via a 0
this metal wave helix demonstrates pulse propagation
3 glass provides sterilizable vessels for biology
Blue Epoxy Wire Test Tube Rack, 80-Hole (8 x 10), for 22-25mm Tubes Lab Supplies_Sieves This is friendlyEpoxy coated steel wire test tube rack with 80 holes in an 8 by 10 layout, sized for 22 to 25 mm tubes in high throughput biology and chemistry classrooms.
US$ 19.75
US$ 28.50
US$ 31.50