3 refill interdental brushes 1 Trio Compact/Flex

Inava interdental brush refills are specially designed to remove dental plaque and food debris residue. They are compatible with both Trio Compact and Inava Flex handles. They have thick white bristles and thinner black bristles as well as a durable flexible shaft that makes it easy to reach difficult areas. These ISO size 1 brush heads are 0.8 mm in diameter and are recommended for narrow interdental spaces.