Stem | Marble Runs

German engineering designed to create endless building possibilities for spatial thinking minds - Each of the Different Colour Blocks has a different Function - Fun practice for logical and engineering thinking - Quality Time Together - The Whole Family P

129-PIECE SUPER SPIRALS TOY : More spinning and surprises with this 129-piece deluxe quadrilla set; Marbles travel inward on the concave side of the two-sided spiral twists and outward on the convex side - ABUNDANT ACCESSORIES : Four special control block

129-PIECE SUPER SPIRALS TOY : More spinning and surprises with this 129-piece deluxe quadrilla set; Marbles travel inward on the concave side of the two-sided spiral twists and outward on the convex side - ABUNDANT ACCESSORIES : Four special control block

129-PIECE SUPER SPIRALS TOY : More spinning and surprises with this 129-piece deluxe quadrilla set; Marbles travel inward on the concave side of the two-sided spiral twists and outward on the convex side - ABUNDANT ACCESSORIES : Four special control block

Wooden marble run set with 94 pieces, featuring colorful tracks, blocks and marbles for creative play. Builds balance, gravity, and problem‑solving skills while offering endless looping paths for young builders.