3" ABS Pulley with 50mm Ball Bearing and Thumbscrew Capacity_150mL Mid-length 750mm black insulated 2mm-plug

Mid-length 750mm black insulated 2mm-plug lead with a crocodile clip on the opposite end

wave monitor

Compact-format sonometer designed to study the physics of vibrating strings on a footprint smaller than the standard 1-meter teaching unit

625 inches in diameter

the smallest three-wire option for very early counting and number-sense work

3" ABS Pulley with 50mm Ball Bearing and Thumbscrew Capacity_150mL Mid-length 750mm black insulated 2mm-plugABS plastic pulley with a 50mm ball bearing wheel, a thumbscrew clamp for rod attachment, and an 18mm attachment diameter for pulling small weights in mechanical advantage experiments.