GPBK28BGC28" Gard N Post Bollard Kit with grounding clip Black Gard N Post. 28" bollard kit only for devices. Openings on both sides of post for back to back power or power on one side and low voltage on the other. Metal support post attaches to surface. The non metallic Gard N Post slides over the support post. two 1 2" Knockouts. Color Black. Color is permanent, no chipping. With Grounding Clip.