Simple Machines Gear Train CHINA MARKERS Uses 3 AAA batteries and

Uses 3 AAA batteries and *Batteries are not included

SKU: ERSBICGSM609BE

and the low-odor

and drawings is easier than ever with 36 Erasable Colored Pencils in classic colors

Sold as a pack of 6 discs

Simple Machines Gear Train CHINA MARKERS Uses 3 AAA batteries andMPN: 005646 UPC: 895452001442 This device illustrates the workings of a system of gears. When you turn one gear, the meshed teeth cause the other gears to rotate as well. The second gear turns in the opposite direction as the first, and the third gear turns in the same direction as the first. By meshing together a series of gears, you can transmit force from one place to another, as well as change in the direction of applied motion. This classic