Elgydium Clinic Interdental Brushes Refill ISO 4 x3 are designed to be compatible with the Elgydium Clinic Trio Compact and Elgydium Clinic Flex handles. With a thickness of 1.5 mm (ISO 4), these refills are ideal for individuals with large interdental spaces, offering a convenient and effective way to maintain oral hygiene. These brushes are particularly recommended for those with implants, braces, or exposed tooth necks, helping to reduce plaque buildup between teeth and in hard-to-reach areas. Each brush features a flexible head that ensures thorough cleaning, while the dual-colored bristles (black and white) provide additional benefits. The black bristles contrast with the teeth, making it easier to visualize and remove debris, while the white bristles help detect any occasional bleeding, assisting in gum health monitoring. These interdental brushes offer an efficient and simple solution for cleaning areas that regular toothbrushes cannot reach.