Simply remove the old head by unscrewing it from the handle anti-clockwise, then insert the new one by screwing it clockwise. The used miswak head can be home composted.
Miswak wood has been used for millennia by people in Africa, the Middle East and Africa as a natural tooth brush. SWAK has created a reusable bioplastic handle which combines with replaceable miswak heads to dramatically reduce the waste associated with oral hygiene. . It contains only plant-based materials and is naturally vegan.
How to SWAK:
Moisten the tip of the brush with saliva, nibbling it gently to soften it if needed. Gently massage the inner and outer surface of your teeth with the brush. The small head makes it easy to access gaps and crevices; there's no need to use toothpaste. Miswak heads last 4-8 weeks.