The spare Guru X-Change Window Feeders weights are available in five sizes XS, Small, Medium, Large and Extra Heavy. The unique X-Change weight system allows you to change the weight of your feeder in a matter of seconds. The Window feeder has rapidly become the ’must have’ item in natural feeder angler’s armouries. It is not only ideal for long distance fishing due the aerodynamic shape and weight forward design, but it also has the advantage of being able to feed a large proportion of particles like casters, maggots, corn, pellets or worms with a very small amount of groundbait when needed. The X-Change Window Feeder weights are also available in the following: Light, Heavy and Extra Heavy Weight Packs; X-Small and Small Window Feeder Light Weight Pack – 20g & 30g X-Small and Small Window Feeder Heavy Weight Pack – 40g & 50g X-Small and Small Window Feeder Extra Heavy Weight Pack – 60g & 70g Medium Window Feeder Light Weight Pack – 30g & 40g Medium Window Feeder Heavy Weight Pack – 50g & 60g Medium Window Feeder Extra Heavy Weight Pack – 70g & 80g Large Window Feeder Light Weight Pack – 30g & 40g Large Window Feeder Heavy Weight Pack – 50g & 60g Large Window Feeder Extra Heavy Weight Pack – 70g & 80g