Quadrilla Marble Run Build a tall tower, then drop in some marbles and watch them roll through chutes, see-saws, spirals and other nifty gadgets. The wooden pieces are held together with pegs for sturdy constructions. The blocks are color-coded according to function, to make building easier.

Fun 1 See Saw 072-46060 This red see saw will collect all your marbles then let them all out at once, but from which side? $9.99   For ages 4 to 99

Twist Set Marble Run 072-46020 The Twist Set contains the following 41 blocks in 8 colors/functions 22 purple height extenders 10 natural height extenders 10 red ramps 2 red ramp hole blockers 5 hole blockers 100 marbles in assorted colors 6 curved rails 2 spirals 2 wavy tracks 2 mini curved tracks $149.99   For ages 4 to 99

Fun 2 Spiral 072-46070 Add the Fun-Set 2 for more spinning action and fun! Watch the marbles go 'round and 'round. $14.99   For ages 4 to 99

Fun 4 Redirect 072-46090 These red blocks will have you guessing which hole the marbles will drop out of each time. $14.99   For ages 4 to 99

Expansion1 Curved Tracks 072-46100 For faster, higher, stronger fun add these curved track pieces. $9.99   For ages 4 to 99

Expansion 6 Blue-Green Blocks 072-46150 Six blue-green blocks that the marble goes through diagonally. Adds more height and fun. $9.99   For ages 4 to 99