Specification Brand : Crimp Supply BulletPoint1 : PVC BulletPoint2 : 2 to 1 shrink ratio BulletPoint3 : 0.3125'' ID Before Shrink BulletPoint4 : 0.1563'' ID After Shrink BulletPoint5 : Tips: Avoid the ceramic tube from breaking to scratch your hand, it is recommended that you wear glove for installation. Color : Black ExternallyAssignedProductIdentifier : 1000135432324 GpsrSafetyAttestation : 1 ItemName : 5/16" Dia. Black Shrink Tubing - (100 ft. spool) ItemPackageDimensions_Height : 14.3 centimeters ItemPackageDimensions_Length : 1.4 centimeters ItemPackageDimensions_Width : 10.3 centimeters ItemPackageQuantity : 100 ItemTypeKeyword : heat-shrink-tubing Manufacturer : Crimp Supply Material : PVC ModelNumber : mea221102ee0077 NumberOfItems : 100 PartNumber : 19A11024 ProductDescription : 5/16" ID (before shrink) black shrink tubing. 100 ft. spool. Made of polyolefin. Has 2 to 1 shrink ratio. This economical PVC shrink tubing is not as easy to install as Polyolefin, but it does offer better resistance to chemicals and has a tougher outer layer. It also stands up better to direct sunlight. ProductSiteLaunchDate : 2014-09-24T11:16:04.589Z Size : 0.04x0.12x0.4" SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 300 UnspscCode : 40142000