Spool Stop - Modular spool stopper for shelf

Shelf based spool stopper to stop spools rolling off of your shelves. This was designed to be very low profile at only 8mm high for applications with reduced space or shelf height. Its modular so, can be made as long or as ashort as our need with end parts to finish the edges. This is a very low profile design. I have not tested withj angled or sloped shelving. I would not recommend using this to prvent spools from rolling of of anything other than leverl surfaces. The tolerances are not tight as I wanted to be able to changes the parts without effort. They slot together, but do not clip together.