This Model 400 has never been used, it comes with all the spacers and chucks that you will need for canning #307 & #401 size cans. Great for Sportsmen and for canning poultry, fruits and vegetables. It comes with 48, 8oz cans & lids and 48, 19oz cans and lids, all the instructions, parts list and some recipes are included. It clamps easily onto the edge of the worktable or counter.