Graham Field Feather Safeshield Disposable Sterile Scalpel Configuration:Feather Safeshield Disposable Sterile Scalpels, Size 20 #0046 C007 08: Grey Cover for IB400 Brand_CardioChek Plus #0046 C007 08: Grey Cover for IB400 Line Frequency: 50 60 Hz Features:• Sterile: Gamma sterilized and ready for use immediately after opening• Single Use Disposable: Helps prevent patient cross contamination• Individually packaged: Equipped with clear window for product selection verification and pull tabs for easy opening• Clear locking retractable safety shield: Can be operated with one hand• Available in 11 sizes: Including most common blade sizes and select specialty blade size• Color coded by size: Release tab on protective shield and coordinating packaging assists with blade identification• Ruler printed on handle: Includes cm and mm markings• Similar weight as conventional disposable scalpel• Not made with natural rubber latex• ISO 9001 and 13485 certified utilizes high precision technology and carefully selected materials