Monkey Playsystem is a swing set company that has successfully created several different styles for there line of KidWise Playsets. Well, there is one thing all those swing sets have in common – safety. While their Monkey Playsystem #1 is perfect for a smaller yard, their Monkey Playsystem #4 is great for the larger yard and has three forts. However, their swing sets are more for the customer who wants maintenance free play-sets with the lumber encased in a plastic sleeve, so they don’t have to complete annual sanding and water sealing.