Hall's Car - for Physics Demonstrations - 5.5"L x 2.3"W x 1.4"H - Eisco Labs music_update_2021 2)fixed thermometer in one place

2)fixed thermometer in one place when put it on the desk avoid rolling other places

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7 inch Package Details: 2pcs Mic stand adapters Note: Due to manual measurement

it automatically connects to the last paired device

Compact Design Great for travelers or users with limited space

Hall's Car - for Physics Demonstrations - 5.5"L x 2.3"W x 1.4"H - Eisco Labs music_update_2021 2)fixed thermometer in one placeHall's Car for Physics Demonstrations 5. 5"L x 2. 3"W x 1. 4"H Eisco Labs The Hall's Car can be used with an inclined plane, weights, and pulleys (all not included) to study relationship between energy and work. It features a molded one piece body with a central well to hold additional masses. The molded wheels have sleeve bearings for absorbing friction and reducing vibration. A removable metal thumscrew at one end can be used to secure a string,