These A6 black cardstock blanks (4.1 × 5.8 inches) are made from premium 122 lb cover cardstock (450gsm), offering an ultra-thick, rigid feel ideal for professional crafts and paper projects. The deep matte black finish creates strong contrast for foil work, metallic pens, gel pens, embossing, and mixed-media designs. Supplied flat and unscored, these blank cardstock sheets are perfect for postcards, inserts, layering, die-cutting, and custom stationery, giving you full control over your finished design. The heavyweight construction helps prevent bending or warping, while the smooth surface supports clean handwriting and decorative techniques. This 25-pack of black cardstock sheets is well suited for artists, crafters, designers, and small businesses producing handmade cards, premium paper goods, event stationery, or creative packaging. For printing, please check your printer's specifications, as not all home printers support heavyweight cardstock.