Ticker Tape Timer Device with Carbon Disks Physics Bull frog dissection model with

Bull frog dissection model with open back reveals vertebral column

Ten-pack of 16mm steel ball bearings sized as a larger projectile for ramp experiments

sized for precision-stripping multistrand and solid-core circuit wire ahead of soldering or terminal-block insertion

and torsional balance

Two-position copper plug key switch with 4mm terminals and two removable plugs

Ticker Tape Timer Device with Carbon Disks Physics Bull frog dissection model withPlastic cased ticker tape timer at 4. 5 by 3 by 1. 5 inches producing 50 60 dots per second via a vibrating striker, shipped with ticker tape, carbon discs, and a movable disc plug.