2015 San-X SUMIKKO GURASHI sticker sack / seal bits.
80 pieces of seal bits / sticker flakes.
Size of the pack is about 3 3/8 x 3 1/2 inch.
A quarter coin is included in the picture to provide the relative size of the sticker bits (about 3/8-1/2 inch).
The stickers are made of plastic.
So CUTE and Kawaii.