The Hammermill Paper 99.99% Jam-Free Guarantee: You will not experience more than one jam in 10,000 sheets using Hammermill copy paper on your high-speed digital printer or we will replace your Hammermill paper purchase. We test more than 13.5 million sheets of paper every year to make sure that each sheet is consistent. Then we test our papers on all kinds of printer and copier equipment to ensure that our paper will work well for you, every time, on every machine. MAKE SURE IT’S ORIGINAL HAMMERMILL QUALITY: look for “Ships from and sold by Amazon” at the top of the page, under the product title. “It’s More Than Just Paper” to us and millions of sustainable forestry workers across America, including American family tree farmers. Hammermill papers are made with renewable resources from certified sustainably managed forests. We want our business to last for generations and that means taking good care of our environment. This Hammermill copy paper is an economical paper for multipurpose print and copy use. It is available in 8.5 x 11 letter size paper. Hammermill Copy Plus is available in a single ream (500 sheets of paper) and in cases of paper-wrapped 10 reams (5,000 sheets). Choose from items listed at top of page in SIZE and STYLE NAME.