ROKR 3D Wooden Puzzle-Mechanical Model-Wooden Craft Kit-DIY Assembly Toy-Mechanical Gears Set-Brain Teaser Games-Best Gifts for Adults & Teens Age 14+(LG504-Fortress)

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  • ?[ROKR TOWER COASTER] Tower coaster has a more dynamic shape,it is highly praised in the ROKR marble run series.Crank the handle, the marbles can be transported from bottom to top in an orderly manner.
  • ?[INTERLOCKING DESIGN] Working in tandem through gears. Sanding the gears with sandpaper and wax it will make the model kit rotate more smoothly.
  • ?[A CREATIVE GIFT] Our marble run kits make great sensory stimulation toy gifts and STEAM & STEM puzzle gifts for adults and teens. Children under 14 may require assistance to assemble correctly.
  • ?[QUALITY THROUGHOUT] ROKR utilizes industry-leading technology to produce best 3d wooden puzzles.All pieces are laser-cut and the error is less than 1/5000 inch,make sure each part fits tightly.
  • ?[DETAILED INSTRUCTION] We offer a detailed how-to booklet.It will take about 6 hours to build up this 3d puzzle for adults.Teens around 14 take longer.
  • ✉️[SERVICE]ROKR offers free replacement of damaged parts.If there is any problem, we will assist to check and provide guidance.Simply contact us and we will respond within 12 hours.