General description Series 5/6 53B foil shaver replacement heads are designed for high-quality performance, featuring waterproof and rust-proof properties that facilitate easy cleaning after use. This pack includes four replacement heads to ensure your electric shaver maintains optimal shaving efficiency. Technical specifications Color: Black Material: Plastic + Metal Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with Series 5/6 53B electric shaver replacement heads Models: 6072cc, 6090cc, 6020s, 6040cs, 6075cc, 5018s, 5049cs, 5035s, 5020s, 5050cs Compatible with all new generation Series 5/6 electric shavers Usage It is recommended to replace the shaving head every 18 months to maintain shaving performance and ensure regular cleaning for optimal hygiene.