Unleash limitless creativity with this Hape control block multipack, designed to elevate your child's Quadrilla marble runs. Featuring an adjustable distributor block for directing marbles and three playful see-saw types, this set guarantees delightful surprises and hours of engaging fun as your little ones explore the wonders of gravity and movement. FEATURES: Control-block pack for Quadrilla includes adjustable distributor block and three types of see-saw, Different colored see-saws send marbles in various directions: red sends them randomly, green collects 3-4 marbles before tipping, blue distributes down or sideways, Knob and button on the distributor block change the direction of the marble, Helps develop spatial thinking and understanding of STEM principles, Fully compatible with all Hape Quadrilla sets for seamless integration and expansion. MATERIAL & CARE: Plastic, Wipe clean. DETAILS: Weight: 0.5 lbs., Age: 4 years & up, No assembly required, Imported. Size: One Size. Gender: unisex. Age Group: kids. Material: NONE.