The Silent Gliss 5420 has two channels to allow unlimited overlapping of the curtains without the need for an overlap arm. The 5420 also has manual over ride option. Click here for more info
The G-Rail 6200W by Goelst is an excellent solution for those who are looking for a high quality curtain track to suit bay windows Click here for more info
The Autoglide Total Control 5090TC model permits opening and closing by both a timed programme and by remote control, using an IR handset Click here for more info