12piece replacement brush heads for sonic electric toothbrushes, compatible with Oclean X, X PRO, Z1, F1, One, Air 2, and SE models. Bristles use Dupont materials for durability and effective cleaning. Black color. Key benefits Maintains cleaning performance by replacing worn bristles regularly. Dupont bristle construction offers reliable stiffness for plaque removal while remaining gentle on enamel and gums. Designed to reach along the gumline and into hard to reach areas for thorough cleansing. Hygienic, individually sealed packaging helps preserve freshness before first use. Easy to install with a secure clickin fit on compatible Oclean devices. What this set includes and attributes Compatibility: Oclean X, X PRO, Z1, F1, One, Air 2, SE sonic electric toothbrushes. Material: Bristles manufactured with Dupont materials. Color/appearance: Black brush heads. Quantity: 12 brush heads per set. Size: Standard replacement head size for the listed Oclean models. Performance: Designed for frequency sonic cleaning compatible with the listed devices. Use cases Everyday replacement to maintain cleaning efficiency as bristles wear. Travel and onthego brushing: keep a spare set in a bag or carry case for continuous whitening and plaque control. Household or multiuser setup: assign different heads for family members using the same or similar Oclean models, ensuring fresh bristles for everyone. Dental care with braces or hardtoreach areas: use to improve cleaning around brackets and along the gumline where buildup tends to occur. How to Remove the existing brush head by pulling straight off the handle. Align the brush head with the handle and press firmly until it clicks into place. Start the toothbrush to verify a secure fit and proper operation. Maintenance tips brush heads every 3 months or sooner if bristles appear splayed or worn. Keep replacement heads in their sealed packaging until ready for use to preserve bristle integrity. Rinse the head after brushing to remove toothpaste residue and prevent buildup on bristles.