Tampico fiber (agave) and oiled beechwood.
Lightly tap your brush against a surface after use and allow it to dry in an airy environment at room temperature, either hanging or otherwise freely exposed to the air. This allows the remaining water to drain off and prevents the wood from swelling, splitting and/or mildewing.
To help your brush last rub the wood with olive or sunflower oil occasionally.
Dish brush measures 23.5 cm long.