Concrete Post Clip, all steel construction with a coated finish, designed to fit 4-inch (10cm H) concrete posts. No drilling, screwing, or additional fixing required. Simply place the bracket over the top of the fence post and secure in position. New for 2016: Upgraded post clip includes a screw fitting to hang grow bags. This improved design allows you to place the clip over the post and tighten the screw until firmly clamped. Ideal for hanging grow bags, half moon baskets, hose pipe reels, and similar accessories. We recommend applying a protective coating or grease on the screw to prevent rust, as the threaded portion cannot be powder coated. A small amount of grease may also be used. Color: Black Material: Metal Package Contents: 1 x Concrete Column Clip Note: Only the items listed above are included. Other products are not part of this package. Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement may vary by +- 1-3 cm.