Specification Brand : uxcell BulletPoint1 : Country of Manufacture: CHINA; Material: PVC; Net Weight: 8g; Main Color: Black BulletPoint2 : Package Content: 20pcs x Vinyl Thread Protector BulletPoint3 : Inner Diameter: 7mm / 0.28" BulletPoint4 : Inner Length: 15(+/-2)mm / 0.59"(+/-0.08'') BulletPoint5 : Overall Size: 16.5 x 8.5mm / 0.65" x 0.33" (L*OD) Color : Black ExternallyAssignedProductIdentifier : 6117597561402 ItemName : uxcell 20Pcs 7mm Inner Dia PVC Flexible Vinyl End Cap Screw Thread Protector Cover Black ItemPackageDimensions_Height : 0.39 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 20 ItemShape : Round ItemTypeKeyword : luer-cap-fittings Manufacturer : uxcell Material : Polyvinyl Chloride (PVC) ModelNumber : a17112200ux0473 NumberOfItems : 20 NumberOfPieces : 20 PartNumber : a17112000ux0102 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.