For holding 1/2'' irrigation poly pipe string in place. Clips right onto pipe and helps keep the pipe in position, flat to the ground.Printed in PLA on low quality setting on the MB Replicator2 (.3mm layers, 10% fill, 2 shells). Great flexibility and grip aound the pipe. Wonder how the PLA is going to stand the test of the elements... There's a little miss in the SketchUp model - so if you use that, run the STL file through Netfabb before printing or find the snag and fix it :)