Two kinds of heads can be replaced and easy to clean. After use, just rinse or brush off the paint with tap water and wait for it to dry. Multifunctional-Two types of heads are suitable for different edge oils. Wire mesh head: used to dilute oil. Red reticulated cylinder head: used for viscous oil. characteristic double bearing structure ensures smooth rolling. Double bearing structure ensures excellent stability and rolling sensitivity. This help to draw evenly. Aluminum alloy striped handle, matte sandblasting on the fuselage, increasing friction and anti-slip.