Abstract: A synthetic turf border system that utilizes multiple turf border elements of the same or different lengths and shapes to provide a flexible synthetic turf border system that cleanly affixes synthetic turf around an entire area regardless of the shape of the area is presented herein. The presented synthetic turf border system conforms to the shape of a given area by either providing pre-shaped angular and non-angular components, or by allowing individual elements, namely turf border bases, to rotate through degrees of arc in relationship to each other as necessary to fit the area. Synthetic turf is attached to the border bases then cut before final securement to the system.

Abstract: A modular post system, in some versions, includes an exterior post extending along a central axis. The exterior post may be composed of multitude of tube segments that are coupled, with each other to form the exterior post. In some cases, each tube segment may have at least four holes arranged in a ring about the central axis. The holes are configured to allow the mounting of articles, such as playground equipment, to the post system. Thus, the exterior post may have a multitude of rings with the rings being located in axial planes a fixed distance apart along the central axis. The tube segments have interior surfaces from which ribs protrude, to define an internal channel of the exterior post. An internal core post may be partly located within the internal channel. A fastening mechanism may secure the coupled tube segments to the internal core post.