30 a that extends along a body 30 b to a closed second end 30 c a full circumferential extension of the body 30 b forms a full annular extension 30 d of the inner cup portion 30 adjacent the open first end 30 a the open first end 30 a is capable of receiving an animal teat a fluid flow path 34 is formed within the wand like handle 20 and extends from the connection 28 with the flexible hose 24 along internal channels 34 a 34 b and 34 c within handle 20 to an aperture 37 in the base of the outer casing 32 the handle 20 also has a manually operable lever 36 that is capable of being pressed down to open a valve 38 a hook 39 is provided on the handle to enable the application device to be hung up the inner cup portion 30 as shown in fig2 has an over flow chamber 40 formed by an elongate channel 42 that extends part way along the body 30 b of the inner cup portion 30 from its open first end 30 a towards its closed second end 30 c the base 44 of the elongate channel 42 is inclined at a slight angle to the plane of the open first end 30 a fig2 a shows the dip cup 26 of fig2 in closer detail by showing the outer casing 32 cut away fig2 a reveals that a tube 35 fits within the aperture 37 in the base of the outer casing 32 to form a flow path that connects the outlet nozzle 31 to the fluid flow path 34 in use the treatment liquid under pressure either using a pump or compressed.