UGears 400 Pieces Marble Run Wooden 3D Puzzles

UGears 400 Pieces Marble Run Wooden 3D Puzzles Challenging wooden marble run designed for both kids and adults Assemble model building kits individually or with family and friends No extra tools required everything needed is included in the box Watch the marble roller coaster come to life as you crank the hoist Model dimensions 10.6 x 12 x 10.6 inches 27.5 x 30.5 x 27 cm Package dimensions 14.9 x 6.7 x 1.3 inches 37.8 x 17 x 3.4 cm Includes 400 components for an engaging building experience Estimated assembly time 7 hours Assembly difficulty level Medium