Quercetti Tubation - 40 Piece Interlocking Pipeline Maze Building Set - Open Ended Construction Toy for Ages 3 and Up (Made in Italy) Create a maze of pipelines with this open ended construction set that includes 40 pieces with 4 different types of interlocking tubes. Bring Quercetti building fun to the bathtub. Children delight in experimenting with which path the water will take. Compatible with the Quercetti Saxoflute, Super Saxoflute and Tubation Transparent (all sold separately) Contents include 16 L Shapes, 4 T shapes, 4 Cross shape tubes and 16 straight tubes. Quercetti toys are designed to help children develop creativity and intuition while at play. Proudly designed and manufactured in Italy.