The comb teeth technology arranges and guides the messy beard into the trimmer, reducing the need for repeated shaving and providing a more effective and comfortable shave. Compatible with Braun 3 series models including 300S, 301S, 310S, 320S, 330S, 340S, 360S, 380S, 3000S, 3010S, 3020S, 3030S, 3040S, 3080S, 350CC, 370CC, 390CC, 3050CC, 3090CC, Cruzen6 and others. Achieve a closer shave with replacement heads designed to restore shaver performance. For optimal results, clean the shaver regularly. Replacement head helps return your shaver to peak performance, delivering a close and smooth shave. Easy to install. Constructed with plastic and stainless steel materials for durability, wear resistance, and corrosion resistance. Safe and reliable for daily use. Product Name: Shaver Head Replacement Foil & Cutter Fitment Type: Direct Replacement Color: Black Material: Plastic + Metal Package Contents: 2 x 21B Shaver Head Note: Light reflection and display differences may cause slight color variation between the image and actual item. Measurement may vary by +/- 1-3 cm.