Ecology legal pads are packaged 50 sheets per pad in a pack of 12. The paper is watermarked, acid-free highly opaque 18-bond, perforated and wide ruled on both sides. The numbers supporting paper recycling are persuasive: one ton of paper made from 100% wastepaper instead of virgin wood fiber will save 17 trees, 4100 kilowatt hours of energy, 7000 gallons of water, 60 pounds of air-polluting effluents, 3 cubic yards of landfill space and up to $150 in taxpayer money for waste disposal.