Certified Pre-Owned Explore Science 125 Scientific Challenges Set - STEM

Certified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the Explore Scientific Quality Control Team to ensure the item meets our high standard. The item is then repacked, often in a new box, and prepared for shipment. Generally these items come from one of three sources: returned, often in like new condition; traded in on another item; or new but has blemishes and marks. Certified Pre-Owned items carry the standard Limited One-Year Warranty on mechanical and optical systems; however, because these items are pre-owned, they DO NOT carry a cosmetic warranty. Features Learn simple scientific principles as you tackle 125 different circuitry challenges Design a maze and up the difficulty with a few bends of a wire Build a mini basketball game, a bubble maker or a robotic dinosaur in a few simple steps Set up challenges involving launching a flying disc, spinning a color wheel or ringing a bell Includes m