a treatment agent and be manipulatable with the item in the bag a membrane closes the open end of the bag and includes an insertion opening a cloth for wiping the item is supported at the open end application_number US 80796107 A description the vessel is described here with reference to an animal paw it may be adaptable for use with other items as indicated above with reference to the drawings the vessel 10 according to the invention includes a flexible vessel portion such as a flexible bag 12 which is of flexible soft material that may be manipulated for massage of a leg in the bag and so that the bag likely expands upon insertion of a liquid treatment agent 14 into the interior 16 of the vessel or bag 12 the bag is flexible so it can be manipulated from the exterior for example to massage an animal 39 s leg and paw the bag is preferably a fabric bag with vertical orientation pleats at 18 etc the pleats enable the bag to expand when treatment agent is placed in it e g poured into it and when an item is placed in it and also enables the bag to be manipulated and changed in shape more easily than if the bag of the vessel were not pleated since the bag 12 is flexible a support frame 22 is installed in the top of the vessel a clamping ring 24 around the outside of the vessel.