Learning Resources Spring Scale Skin Model Weights are made of polished

Weights are made of polished iron and copper

Premium Quality: Thermometer & Hygrometer is made of high-grade construction all the way through

A slide rheostat (or sliding rheostat) is a circuit element that can change its resistance to act as a control circuit

tip and PP sealing tube

BB0028 Stem of sunflower

Learning Resources Spring Scale Skin Model Weights are made of polishedSpring scale made of sturdy plastic. Kids learn to measure weights in grams and pounds. Features zero adjustment dial for accuracy. Ages 8+ If you need custom order with different sizes design, please contact us. Safely Packaged to avoid being damaged during transportation. If received broken, please provide the image to receive instant refund.