Abstract: A retention device for retaining a post adjacent a structure having at least one guardrail. The device includes a spacer member with generally opposed spacer first and second ends, an anchoring member for anchoring the spacer member to the structure, and a grasping member for grasping the post to the spacer member. The anchoring member releasably connects to the spacer member adjacent the spacer first end via a first securing assembly so as to clamp the guardrail there between. The grasping member releasably connects to the spacer member adjacent the spacer second end via a second securing assembly so as to clamp the post there between.

Abstract: A retention device for retaining a post adjacent a structure having at least one guardrail. The device includes a spacer member with generally opposed spacer first and second ends, an anchoring member for anchoring the spacer member to the structure, and a grasping member for grasping the post to the spacer member. The anchoring member releasably connects to the spacer member adjacent the spacer first end via a first securing assembly so as to clamp the guardrail there between. The grasping member releasably connects to the spacer member adjacent the spacer second end via a second securing assembly so as to clamp the post there between.

Abstract: The present invention is a holding device that can be used easily and simply mount and hold the cylindrical post of a large protecting umbrella or parasol at various angles to a variety of openwork guardrails outside patio or on a balcony. The tightening of securing bolts of the device simultaneously anchors the holding device to the guardrails and grasps the cylindrical post within symmetrical jaws of the device.