The buds head is made of 100% pure high quality cotton or sponge. The hardness of the stick is good, and it's not easy to bend it. Stick material available in plastic, paper, wood and bamboo. The shape of the cotton heads cover round, pointed-shape, flat, and special shape as per customer' special requirements, single, or double heads. Length and diameter of stick, diameter of head can be customized. Head size: (��4 - 15mm). Type: Non-Sterile or Sterile by Gamma Ray/EO.