1. plasitc pipe 2. flexibility 3.best price,factory outlet 4.OEM with cilors,length,structures material PVC brand FH/OEM standard ROHS diameter as per the customers' requirement thickness as per the customers' requirementuse widelyFeature:Material: PVC, Working Temperature: -40 to 120 centigradeAppearance:corrugated hose with smooth cover. distance average between each ripple. no flaw, poison, ...