Specification Brand : uxcell BulletPoint1 : Country of Manufacture: CHINA; Material: PVC BulletPoint2 : Net Weight: 108g; Package Content: 200(+/-2%)pcs x Vinyl Thread Protector BulletPoint3 : Main Color: Black; Inner Diameter: 8mm / 0.31" BulletPoint4 : Inner Length: 15mm / 0.59" BulletPoint5 : Overall Size: 17.5 x 9.5mm / 0.69" x 0.37" (L*D) Color : Black ConnectorType : Cap ExteriorFinish : Black ItemName : uxcell 200Pcs 8mm Inner Dia PVC Flexible Vinyl End Cap Screw Thread Protector Black ItemPackageDimensions_Height : 16.4 centimeters ItemPackageDimensions_Length : 5.5 centimeters ItemPackageDimensions_Width : 12.2 centimeters ItemPackageQuantity : 200 ItemTypeKeyword : luer-cap-fittings Manufacturer : uxcell ManufacturerGrade : Grade 2 Material : PVC ModelNumber : a17112000ux0052 NumberOfItems : 2 NumberOfPieces : 5 PartNumber : a17112000ux0052 ProductDescription : Used for protecting screw thread point. Simply slide over the threaded end of the screw or bolt, also easy to take off. The flexible vinyl material stretches over the threads to provide a tight seal, cushions the threads against damage. Applications include: protection during transport, protection against liquids or dirt.