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35mm and 40mmPack of 100Features a flat back for gluingFun and creative100 per Bag
Each badge measures 2-3/8" in diameter
four section
Made of 55% recycled plastic
Hydraulics Stem Starter Kit Non-magnetized hematite stones 35mm and 40mmPack of 100FeaturesMPN: 005003 UPC: 88231900092 This activity kit challenges students to create a hydraulic powered device. The essential pieces, plastic syringes, and vinyl tubing are provided; it's up to the young scientists to determine how best to utilize their hydraulic system. Using the engineering design process students will create, evaluate, and redesign their simple machine until their objective is met. Key Features : Includes enough materials to begin 6
