Eco-friendly vent brush that’s kind to hair and scalp. The Head Jog 08 Straw Vent Brush is made from bio-material which is created from renewable biomass such as straw and rice husk combined with plastic and then polymerized. This environmentally friendly production process means that net CO2 emissions are zero for each brush. The Straw Vent Brush has flexible, soft pin bristles that massage the scalp and have high resilience. They’re kinder to hair, meaning fewer breakages and making the Straw excellent for detangling wet or dry hair. Each brush has a loop design back and a double curve which gives it great flexibility, letting it mould to the contours of the scalp for a gentle and super comfortable experience.