The ZK0051 toothbrush head from the brand Concept is a high-quality product specifically designed for adult dental care. This item is offered in a convenient package containing four pieces, ensuring long-term use. The brush heads are elegantly designed in black and fit perfectly with Concept toothbrush models, particularly the Perfect Smile ZK5001 model. With a medium hardness level, the brush heads provide effective cleaning that is gentle on teeth and gums. Compatibility with the ZK500x product line ensures that users have an easy and convenient way to equip their toothbrush with new heads. The ZK0051 is an excellent choice for anyone who values thorough oral hygiene while appreciating an attractive design.