Specification Brand : uxcell BulletPoint1 : Brush Size- Brush head width: 6mm / 0.23"; Brush head length: 100mm / 3.93"; Total length: 300mm / 11.8"; Material: Pig bristles + stainless steel handle; Color: Brass BulletPoint2 : USES- The Tube Cleaning Brush is perfect for cleaning narrow spaces and is great for reaching into test tubes, pipes, cups, bottles, jars, vases, laboratory glassware, measuring cylinders, beakers, etc. It can also be used for cleaning cars, mechanical parts, computer keyboards, and more. BulletPoint3 : Fan-shaped Bristles- Each brush features a fan-shaped pointed end made of soft pig bristles that can reach all surfaces and corners. BulletPoint4 : Metal Handle- The Tube Wire Brush is equipped with a corrosion-resistant stainless steel twisted wire handle. Its moderate flexibility allows you to modify the handle shape as needed. BulletPoint5 : NOTE- Clean and air-dry the bristles promptly after use, avoid exposing the brush to humid environments. ItemDisplayDimensions_Height : 0.11 inches ItemDisplayDimensions_Length : 9.25 inches ItemDisplayDimensions_Width : 1.18 inches ItemName : uxcell Tube Bottle Cleaning Brush 6 mm Wire Pipe Cleaner Bore Brush Cleaning Stainless Steel Handle for Tubes Brass 4 Pcs ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 12.2 inches ItemPackageDimensions_Width : 1.97 inches ItemPackageQuantity : 4 ItemTypeKeyword : science-lab-tube-cleaning-brushes Manufacturer : uxcell ModelNumber : a24080200ux0426 PartNumber : a24080200ux0426 ProductDescription : Features: 1. The Tube Cleaning Brush is perfect for cleaning narrow spaces and is great for reaching into test tubes, pipes, cups, bottles, jars, vases, laboratory glassware, measuring cylinders, beakers, etc. It can also be used for cleaning cars, mechanical parts, computer keyboards, and more. 2. Fan-shaped Bristles- Each brush features a fan-shaped pointed end made of soft pig bristles that can reach all surfaces and corners. 3. Metal Handle- The Tube Wire Brush is equipped with a corrosion-resistant stainless steel twisted wire handle. Its moderate flexibility allows you to modify the handle shape as needed. 4. NOTE- clean and air-dry the bristles promptly after use, avoid exposing the brush to humid environments.