Colour: SilverSize: 6-12 mm, 10-16 mm, 13-19 mm, 16-25 mm, 19-29 mm, 22-32 mm, 25-38 mm, 32-44 mm (optional)Package Includes: 10* Pipe Clamps1 inch = 2.54 cm, 1 cm = 10 mm = 0.39 in.Cautions1. The real colour of the item may be slightly different from the picture on the website due to various factors such as monitor brightness and light brightness.2. Please understand that there may be slight deviation in manual measurement.