TumbleRoos Wobbling Stacking Toy

The Fat Brain Toy TumbleRoos Wobbling Stacking Toy is a 3-piece nesting and tumbling set designed for infants and toddlers ages 10 months and up. Each kangaroo-shaped figure is sized for small hands the largest piece measures 4.25 inches tall with a chunky, easy-grip form factor that supports developing motor control. Constructed from BPA-free materials, the set includes one large, one medium, and one small TumbleRoo. Nest the smallest figure inside the medium, then inside the large; when the stack tips, the pieces tumble apart one at a time in a cascading sequence that reinforces cause-and-effect understanding.

The rounded wobble-base design keeps each piece upright and in motion rather than falling flat, sustaining infant attention and encouraging repeated interaction. Developmental targets include fine motor skill development, spatial reasoning, and tactile exploration. No batteries required. Set of 3 pieces included.