Elenco was founded more than 30 years ago by 2 engineers, The core of Elenco® is still our strong engineering and design skills, Our test equipment has been proven to be reliable as well as affordable, Our niche in the electronics industry has expanded to include markets from Universities and High Schools to retail toy and hobby stores, Elenco Levers ENG-M01, Learn how Levers are used to increase force and lift heavy objects and how the use of levers can change the direction of motion, Build 6 working models including a parking gate, a sew-saw, 2 types of weighting scales and a wheel-barrow, A 36 page activity book is included with innovative experiments and detailed explanation of the different technological principles applied! Booklet with detailed building instructions also included, WARNING CHOKING HAZARD- Small Parts, Not for Children under 3 yrs, SKU: OWI095