24/case. Back Material: Heavy Chipboard. Binding: Tin Spiral Wire. Binding Edge: 8-1/2". Construction: Spiral Bound. Cover Colors: Grey. Cover Material: Grey Mist. Paper: 15 recycled tablet. Paper Color: White. Perforated Sheets: Yes. Pockets/Dividers: None. Post-Consumer Recycled Content: 30%. Punched/Unpunched: 3-hole punched. Ruling: College with margin. Sheet Size: 8-1/2" x 11-1/2". Sheets per book: 80. Sustainable Fiber Content: 30% PCW.