Strictly for Kids Mainstream Infant Stimucenter. This affordable unit provides a safe haven for newborns through 5 mos. above, with a durable 2" vinyl mat and an acrylic mirror for stimulation. The crawlways below create a maze for crawlers up to 23 mos. Baltic Birch plywood construction with unbreakable Lexan windows for easy supervision. Meets ASTM F 2373-07 Standards and CPSC Guidelines. Assembles in 20 minutes. 60"w x 31"d x 42"h. Lifetime warranty.