Classic American Unfinished Wooden Toolbox, 22.25 x 10 x 10.5 inch Grade_ACS and a matched pair of

and a matched pair of convex and concave lenses for image-formation exercises

this thermistor mounts on a transparent base with 4mm color-coded sockets and a printed circuit diagram for sensor-circuit student work

250 mm long

this insulated wire pairs a 4mm banana plug with a crocodile clip at the other end for color-coded patch wiring

and impact forces for mass-to-weight and pulley-system experiments in physics

Classic American Unfinished Wooden Toolbox, 22.25 x 10 x 10.5 inch Grade_ACS and a matched pair ofBuilt from American birch plywood, this 22. 25 by 10 by 10. 5 inch unfinished classic wooden toolbox supports DIY finishing for tool storage and shop organization.