This appears to be a leopard print folding step stool, commonly used by children and adults in areas like the kitchen or bathroom to reach high places. These portable stools typically feature a handle and are made from durable plastic, designed to fold flat for easy storage. 
The specific design, with its pink frame, black and white leopard pattern, and circular cutouts on the top step, is a popular style available from various brands, including some with "animal print" or "leopard print" options.