PaperPro Premium Staples for Jam-Free Stapling, 0.25 Inch, Full Strip, 5,000 Staples/Box 5,000 Staples per box; 210 staples per strip; standard 1/4" leg length Staples up to 28 sheets Recommended to use with PaperPro Spring Powered Staplers including inJOY , inPOWER , inSPIRE , inREACH , inFLUENCE , inVOLVE , inCOURAGE Can also be used with other brands such as Amazon Basics, Bostitch Swingline and others