Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: Feature: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Made of brass, elaborate workmanship, beautiful appearance, can effectively suppress the vibration Wolf tone, make the sound more perfect 4.It was designed for cello ,golden wolftone eliminator.5.Adjustable wolf tone tube,a useful Suppressor.Specification:Product material:brassColor:goldenBrand name: BQLZRSize:23x9x16mm/0.9x0.35x0.62inch(LxDiaxH)Weight:9gPackage include:1 x wolf tone eliminator Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.