Thoughtfully engineered for curious babies 12 months through 24 months to explore safely. Clear acrylic "windows" provide full observation opportunities for supervisors and a bird’s eye view for children. The spacious deck, steps and slide are carpeted. Six optional See-n-Wheel bins feature a clear acrylic "window" and roll smoothly on casters. Loft area behind bins is closed in for safety. Bins are assembled. Each one is 14" wide x 16" deep x 13¼" high. Loft is Ready-to-Assemble.