The ACEO Starter Kit includes 50 card sleeves and 50 heavy weight 300gsm Watercolor paper art card blanks in a square size of 2.5x3.5 inches. These will work well with any Medium you choose and will not bleed through or warp with added water or heavy pigmented markers.  Specifically designed for ACEO cards, this kit is perfect for creating and displaying miniature art pieces. With high-quality materials, this kit provides everything you need to start your collection of ACEO cards.