Switch to the sustainable dental care with bio-based electric toothbrush head. The plug-in mechanism, housing and spinning area all fully consist of plant-based and recyclable bioplastics. Only the movable center inside is still made of a classic, crude oil-based plastic, which is necessary due to the high strain on that part. However, this section only makes up about 10% of the replaceable head. The bristles are made of 100% renewable raw materials based on castor oil. 2 per package Fits models: Pro, Trizone, ProfessionalCare®, ProfessionalCare® Smart Series, Healthy Clean®, Vitality®, Pro-Health®, Oral-B Triumph®, AdvancePower packaging is made of FSC® certified cardboard and can easily be recycled Ring colours: Glacier and Coral