Each of the five colorful pins features fascinating textures to feel plus a weighted base that wobbles wonderfully. Fit them into the slots of the big bowl either upside down or right side up, matching the colors as you go. On the bottom of the bowl is a bump that keeps it constantly tilted and inside is hidden a delightful chime. Experiment with balance and movement while keeping the senses enthralled! Little ones can't stop exploring SpinnyPins. SpinnyPins Wobbly bowl with slots for sorting textured, wobbly pins Encourages fine motor skills, sensory exploration, early experimentation Pins fit into bowl either upside down or right side up Pins feature two types of surfaces - smooth and coated - unique textures Bowl features bump on the bottom so it's alway off-balance Delightful chime built into bowl Includes 5 pins, bowl Pins each measure 3.75 inches tall, 2 inches in diameter Bowl measures 7.5 x 7.5 x 3.25 inches BPA-Free - Exceptionally safe for baby High-quality materials and construction - Lasting durability