San-X Sumikko Gurashi stamp set.
There are 16 rubber stamps and 2 ink pads.
Size of each stamp is about 0.5 inch to 1 inch. Please see pictures. A quarter coin is added to give an idea of the relative size of the stamps.
Size of the box is about 3.25 x 4.5 x 1.5 inch (8.5 x 11 x 4 cm)
San-X 2013 1255