“Pool Closed” standing floor signs bring together ready portability and high conspicuity. The two-sided signs are offered as a kit containing an injection-molded polypropylene frame and a couple of plastic message panels. With an easy-grip handle on the frame, the sign can be easily moved around, and it can even be folded flat for convenient storage. Additionally, the message panels are swappable and can be locked into place with the pins provided.