The innovative and patented Jet brush head is made of flexible thermoplastic elastomer. Its shape, inspired by traditional brush heads, has been optimized and improved with clever additions, such as three flexible tabs and cleaning ribs. This allows the movable tab to effortlessly reach under the rim and into every corner. Additionally, the optimally placed cross ribs enhance the cleaning effect. The antibacterial Sanitized hygiene function is integrated into the Jet brush head. The flexible special plastic has been permanently equipped with a biocidal product (active ingredient: zinc pyrithione) to combat bacteria.