EBayLine-Mate – Precision Landscaping Line Holder (13mm Rebar Compatible)Take the hassle out of setting string lines with the, a simple but highly effective tool designed to make landscaping and groundworks faster, easier, and more accurate. Designed to fit 13mm steel posts such as rebar, the securely holds your string line while allowing fine left/right adjustment so you can position your line exactly where you need it. The quick-adjust height system lets you easily slide the holder up or down the post once the side screws are loosened, making setup and adjustments fast on site. Perfect for landscapers, builders, groundworkers, and DIY projects where accurate lines are essential. Features Fits 13mm steel posts / rebar Fine left & right adjustment for precise line positioning Quick height adjustment – slide up or down the post Secure locking set screws for stability Durable design suitable for site use Simple, fast setup Ideal For Landscaping Block paving Groundworks Garden edging Foundations and setting levels Product Name: Condition: New Designed for: Professional & DIY use Make setting out lines quicker, easier and more accurate with the central hole is 16mm in diameter to allow for varied poles, most common ground spikes are 13mm These are designed and made by myself, they are 3d printed in ASA material to ensure great UV protection, heat protection and chemical resistance, the bolts used are stainless steel, the price is for a pack of 2 The current versions being sent out have had a minor redesign and now have a threaded hole at the back, after feedback this was suggested as a possible upgrade, pictures of latest version will be added soon. Basically has the option of 3 different tightening points opposed to the original 2. We also have a similar product coming shortly that allows for a 3x2 or 4x2 to be mounted in much the same way as a chalk line, but gives a firm straight edge that makes lining up for patios ect super quick and easy.  V2 will be sent out from now on, this is the version with the single bolt fixing at the rear, after some positive feedback it's suggested that the side mounts are not needed as the line generally pulls forward, it's also quicker to adjust with the single bolt and allows me to make them even stronger around the fixing area, I have had no reports of breaking but the stronger the better in my eyes, any questions or if you would prefer the original version feel free to send me a message before ordering.