They are used to finish flat joints on partitions and ceilings. They dispense the right amount of mixture and smooth the edges of flat joints. Available in different sizes, for use in different phases of the joint (first load, intermediate load and finish). Available in three sizes (175, 250 and 300 mm) They are loaded with the pump and flat-head loading nozzle. They are used with standard handles or Xtender handles (not included, sold individually).