This is my favourite set-up for all my open end feeder fishing. It’s a very simple rig for wire cage and plastic frames, and the stiff boom which is tied in the end of the mainline means tangles are kept to a minimum.
As it’s free running it’s completely safe, too. Use it for bream, tench, roach, perch and even carp. All you need is your reel line, your feeder with a swivel eye or snap link attached, a packet of No8 Preston Stotz weights and your chosen hooklength.