Build new STEM skills with your own construction and destruction machines! Kids build critical thinking and other STEM skills during every play session with WreckerGears,one of the fun-filled Gears! building sets from Learning Resources. With the help of the set's sturdy,colorful plastic gears,kids design and build their best wrecking machines,complete with a wrecking ball,digger scoop,or other construction-inspired accessories. Build along with the designs in the included guide,or let your imagination run free with a twisting,turning original design of your very own! Whether they're building an imaginary fortress or knocking down a few pretend walls,kids will build early engineering,fine motor,and other vital STEM skills with each new imaginative machine. Best of all,WreckerGears' work with all existing Gears! sets,which encourages open-ended play and offers kids endless ways to design,build,and adapt their construction and destruction creations. Appropriate for ages 3 years and up.