The Korum Window Combi Feeder combines the benefits of an aerodynamic window feeder with the bait presentation of a closed end feeder. It can be used with the window open or closed, so bait can escape easily from the feeder on the bottom, or stay protected for distance casting. Simply twist the weight to adjust, making it a great fishing helicopter rig style for species like tench, bream, roach and carp. - Benefits of an aerodynamic window fishing feeder - Bait presentation of a closed end fishing feeder - Can be used with the window open or closed - Bait can escape easily from the feeder on the bottom - Bait stays protected for distance casting - Simply twist the weight to adjust - Great fishing helicopter rig style for species like tench, bream, roach and carp