K’NEX 521 Piece Building Set Only $12.99!

K’NEX 521 Piece Building Set – Link index

Amazon has this 521 piece set right now at only $12.99!

  • Packed with 521 parts
  • Ideas for 35 unique models for open building fun!
  • Convenient storage tub
  • Rods and Connectors made in the U.S.A.
  • Recommended for Ages 7+

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