I haven’t really had them for long-maybe a few months so I can’t speak to durability-but they work great and take up significantly less room. I don’t use them for construction. I use them for dog training and setting up courses at known distances. They are a space saving life saver for that endeavor.The actual safety cones are good quality, however the case that holds them is garbage. Mine arrived with a two inch hole in the corner.These have been great for my 3 teens to learn/practice maneuverability. I wish the bases (currently made of plastic) were a little more crush resistant! If these survive all 3 drivers, I plan to put one in each car for emergencies as they have a light in the top!We use these on our fire engine to save compartment space.The first order included a damaged cone but it was promptly replaced and we are very happy with this product!Product arrived damaged. Box was fine. I’d bet these were used and returned. Disappointed in quality that they would break so easily, but the storage bag also had tears in it, so obviously it was abused prior to shipment.There is no quality control for this product. Of the 5 units in the set we received 2 were defective - one because the light switch did not work and the other because 1/2 of the battery terminals were completely missing.Only deployed at one scene, 2 don't turn off 1 doesn't turn on only 1 working the way it should DO NOT WASTE YOUR MONEYGood product