Established in 1981 on a Guarantee of Quality, Our Gestetner Compatible Staples are Certified by Buyers Laboratory Inc. This purchase is for one master box containing 3 staple refills per box. Each refill will consist of 3,000 staples. Each master box will contain 15,000 staples. If you do not know your Staple Part Number or the model number of your finisher, sorter, or stapler attachment then call. We feature a 100% Satisfaction Guarantee. Questions? Call us toll free at: 1-800-434-9011.