Elgydium Clinic Interdental Brushes Refill ISO 5 x3 are refillable brushes designed for use with the Elgydium Clinic Trio Compact and Elgydium Clinic Flex handles. With a thickness of 1.8 mm (ISO 5), these brushes are ideal for individuals with large interdental spaces. These interdental brushes are particularly recommended for those with implants, braces, or exposed tooth necks, helping reduce plaque buildup in hard-to-reach areas between the teeth. Each brush features a flexible head, ensuring a thorough and comfortable clean. Additionally, the dual-colored bristles—black and white—offer practical advantages. The black bristles contrast with the teeth, making it easier to visualize the debris being removed, while the white bristles help detect any occasional bleeding, offering valuable insight into gum health. In essence, these brushes provide an efficient and easy way to maintain oral hygiene in areas traditional toothbrushes can't reach.