1)butterfly shaped wings for better handling and attachment to skin 2)slip or luer set end matches well with different types of infusion sets 3)siliconed cannula for smooth penetration 4)tube length: 15-30cm 5)gauge:18g - 27g available 6)eo sterilized 7)internationally accepted color-code 8)manufacturing using automated polishing and lubrication processes 9)strict quality control procedures ensure consistent performance Sterile by EO