Security / Medical Paper - Perforated (500 Sheets; 8.5 x 11 Inches; Blue; Item # 09545) Perforated in 4 | Color: Blue | Size: 8-1/2" X 11" | Weight: 24# 10 Security Featues Meets and exceeds federal guidelines set by the CMS for tamper resistance Used for Prescription Pads, Medical Tests, CatScans, and MRIs "VOID" pantographs are easily distinguishable across the entire sheet