Essentially just a clear plastic ball that fits over the control chain at any chosen point. This simple device stops the blind from rolling down past a set position. This allows for faster operation of the blind and also prevents the blind from being lowered too far and damaging the fabric.
All our roller blinds are supplied with a free position stop device as standard.
You may choose to buy this device and fit it to an existing blind, designed for a 5mm diameter chain.