Set imaginations in colorful motion! Introduce young builders to the world of gears with this starter set featuring fun, bright new colors and kid-friendly pieces for easy construction. Invites "little engineers" To discover a world of building possibilities while developing critical thinking and problem solving skills. Includes 28 colorful gears, 14 square pillars, 13 six-way axles, 4 interlocking bases, handle, and activity guide. Compatible with all other gears! gears! gears! Sets for even more imagination and fun.