Stack and play with friends from Sesame Street! 5 different sized cups for stacking and nesting Weighted Oscar toy fits in cups or wobbles on top Play cause and effect games with Oscar Introduces numbers and colors Bright Starts presents baby's new favorite stacking toy straight from Sesame Street! Oscar the Grouch has a tower of trash that'll quickly become a treasure chest of fun for baby. Brightly colored cups help encourage the development of fine motor skills as baby practices stacking and nesting each one. This easy to grasp newborn toy introduces baby to numbers and colors on each of the cups. When baby builds his mini-mountain, help him balance the wibbly-wobbly and weighted Oscar right on top. Or play peek-a-boo with baby by hiding Oscar in one of the cups. With so much fun to be had, even Oscar will leave his grumpy, frumpy frown behind. Recommended for 0-12 months