Physics fundamentals become playtime fun with the Pendulonium STEM Challenge. This hands-on activity set challenges kids to send the included launch balls flying toward goal cups and targets with the help of a three-piece adjustable pendulum. What seems like a collection of simple tasks will actually challenge each child's engineering, problem-solving, and critical thinking skills as they play around with early physics concepts such as force and momentum in search of the ideal solution. In addition to using their brains, kids will also have to make careful use of their muscles - the pendulum in the Pendulonium STEM Challenge is completely kid-powered and helps build hand-eye coordination and muscle control without the need for extra batteries, springs, or rubber bands. Each activity set comes with a full-color booklet filled with easy-to-build challenges, which also ramp up in difficulty to encourage leveled play and continued development. Recommended for 1 player, ages 5 and up. Made in China. Package dimensions: 10.000 x 10.000 x 3.000 inches. 17 pieces. Includes 4-Piece Adjustable Pendulum, 6 Cones, 1 Arch with Windmill, 2 Balls, 2 Goal Cups, Sticker Sheet, Challenges Booklet. Wipe clean with dry or damp cloth. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years of age. Imported Material & Care Plastic Spot clean only