Features: 1. Steel balls are available in various sizes: 0.2 inches 0.28 inches 0.31 inches 0.43 inches 0.39 inches 0.59 inches 0.47 inches 0.75 inches of different diameter balls. Different ball sizes can meet different construction needs. 2. Simple construction: The grouting repair stick adopts double ball stick design one big and one small which is convenient for construction. 3. Rubber and Metal: The outer layer of the handle is rubber and the inner layer is metal rod which is comfortable to hold durable and easy to use. 4. Sturdy and practical: The bricks-pressing stick adopts an integrated design which is light and portable sturdy and practical. 5. Wide range of application: can be used in living room kitchen bathroom balcony etc. A variety of beautiful simple and convenient sewing environments. balls of different diameters Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Quantity: 4 pieces Material: high speed steel + rubber Color: silver and blue Diameter: As picture show Length: 12 cm / 12.5 cm / 13 cm / 13.5 cm includes: 4PCS Double Steel Pressed Ball "