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: Widely used in rc boat, brushless electric boat, boat model.Product material:RubberColor:Black as the picture showed Size:1.3 x 3.2cm/0.5 x 1.25in(Dia x L)Length:About 32mmWeight:10gScope: Remote Control Boat ModelFeature:This push rod rubber seal bellow ie waterproof.To protec your model boat under the sea. Widely used in rc boat, brushless electric boat, boat model.Package include:10 x Push Rod Rubber Seal Bellow 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.