All our bamboo skewers raw material select from the most hard part of bamboo to ensure the skewers is very hard and not easy to break.Process by boiling, degreasing, antisepsis, anti-mildew, steam dried,cutting, polishing, sharpening, strictly select to ensure excellent bbq skewers.Diameter: 2.5,3.0,4.0,5.0,6.0mm available.Length:15cm-60cmPacking as customers requirement.