Pay in 4 interest-free payments of $8.56 Learn more
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
5" to smallest 1" x 0
Each bin measures 7 3/4" L x 11 3/8" W x 5" H
Top-quality latex-free erasers remove marks completely without smudging
All components work with other Gears
Simple Machines Block & Tackle Woodland Friends 5" to smallest 1" xMPN: 005646 UPC: 895452001480 One pulley can be used to change the direction of the force applied by a cord several pulleys can be used to make this simple machine. A small force on the cord can be used to lift a large weight. Experimenting with the device shows why: lifting the block by a short distance requires that the cord be pulled a long distance. This classic wooden model offers children a basic concept of the laws of physics. Desktop sized.
US$ 38.00
US$ 22.75
US$ 120.00