I wanted a cable roll for a 50m XLR cable for a PA setup, and this is just perfect. You can roll out just what you need and there's a locking feature to prevent it from unravelling any more. A few metres of cable can be wound on the outside (so you can connect to the speaker without having to use another lead) and the rest is on the spool. It feels robust and good quality, as you'd expect from Schill.