Sparco Index Card, Plain, 8 Point, 75 lbs., Plain, 5 x 8 Inches, 100 per Pack, White (SPR00580) Make note-taking easy and simple with index cards. Design offers an 8 point thickness and 75 lb. basis weight. Cards are rotary cut for uniform height and blank on each side for maximum note-taking space. Design offers an 8 point thickness and 75 lb. basis weight.