No punching, stapling or tearing with these Safco hanging clamps. They can hold up to 100 sheets for maximum efficiency and organization. Extruded aluminum hanging clamps are 36in long, open to 1in and hold up to 100 sheets. 20lb. maximum weight. Use with the pivot or drop/lift wall racks and the mobile stand or mobile plan center (sold separately). Clamps come in a pack of 6. Recyclable. GREENGUARD certified – certified for low chemical emissions: UL.COM/GG – UL 2818. Ranked in two tiers: Certified and Gold. Less harsh chemicals – made with fewer harsh chemicals, or safer chemicals than typical alternatives, helping reduce your use of and exposure to substances that may be more harmful to your health and the environment.