The SX-70 works a little differently to other Polaroid cameras, meaning it needs a film that reacts to light more slowly. That's why it has its own special SX-70 film with a much lower ASA (that's how you measure film speed). Lower ASA film often gives you richer color and texture, which is why the SX-70 is so popular with artists, creatives, and people who use the word "aesthetics" a lot. 

Technical Specifications

Color instant film for Polaroid SX-70 cameras

ASA: 160
8 photos per pack
Classic white frame
Contains a battery to power your camera

Format: 4.2 x 3.5 in (107 mm x 88 mm)
Image area: 3.1 x 3.1 in (79 mm x 79 mm)