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This 618-pc set contains instructions for 52 unique models - 1 for each week of the year
kinetic and potential energy
the portable storage box enables children to easily carry around their craft kit without any hassle
This fun and engaging construction set for children helps develop hand-eye coordination
Get stuck in with this K'NEX Rad Rides 12 Model Building Set
K'NEX Big Ball Factory building set K'NEX sets This 618-pc set contains instructionsBuild a classic, nostalgic K'NEX model just like you remember with the 20th Anniversary Big Ball Factory. After 20 years in the K'NEX vault, we are bringing back this classic model to thrill our most loyal fans. Over 3,100 Classic K'NEX pieces complete this gigantic ball machine that stands over 1. 2m (4 feet) high. Watch as the 4 balls travel down 5 different paths which way will the ball go next? Just turn the motor on and watch it go! Included are