Self Coiling or Recoil hoses are pre-formed like a spring so they bounce back after use. Our blue NL1085 polyurethane hose has become an industry standard as compared to more ecomonical, traditional "nylon" hoses that had poor handling characteristics. It should be noted that lower cost, lower quality recoil hoses on the market will not "retract" into its original compact self once it is used multiple times.