Item Descriptions:-Made of plastic, which is strurdy and durable, has a long service life.-There are 10 diameters, 10mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm. each diameter per 5pcs.-Great carbon brush holder cap replacement parts, can be used for most motors.-Fit for rotary hammer, grinding machine, electric saw, electric grinder, cutting machine, trimming machine.-Screw thread with slotted connector.Package:50pcs Brush Holder CapsItem Specifications:Material:PlasticDiameter:Multi DiameterColour:BlackFeatures:Screw Thread with Slotted ConnectorQuantity:50pcs