Remove individual ink cap from bag as needed. Place caps in clean work area or on sterile tray.Use:Pour tattoo ink into caps before beginning work. Use separate cap for each color to prevent cross-contamination. Small caps (typically 9mm) for single colors or small amounts. Medium caps (12-15mm) for frequently used colors. Large caps (18-20mm) for color mixing or large quantities. Arrange caps in logical order for efficient workflow.During Session:Dip needle into appropriate color cap. Replace cap if ink becomes contaminated or dries out. Add fresh ink as needed rather than reusing old ink.Disposal:Discard all used caps after each client session - never reuse. Dispose of caps with remaining ink in appropriate waste container (not sharps container unless contaminated with blood).Storage:Keep unused caps in original bag in clean, dry location. Protect from dust and contamination.