Simplay3s unique and customizable Young Explorers Modular Play System is made up of the Young Explorers Adventure Climber, Discovery Playhouse and Activity Climber. Each play unit can be enjoyed by itself - or joined to one or two of the other units to add to the adventure and build an even bigger play set. Over 12 different playset configurations with multiple levels, extra wide slides, climbing ladders, ramps and more to customize your backyard and create a unique play space for multiple children to play. Each set is sturdy, easy to assemble, sanitize and care for, and is recyclable. Best of all, its all made in the USA and shipped directly to your door.