100% . All parts are tested and quality controlled prior to shipment. Fits Braun Series 3 (320-4, 340 w/d-4, 350-4, 380-4, 390-4) and Triple Action FreeFloat shavers. Compatible with Series 3 300s, 310s, 320s, 340S, 350cc, 390CC, 3000BT, 3010s, 3040s, 3050cc, 3070cc, 3080s, and 3090cc electric shavers. Shaver head should be replaced every eighteen months. Replacing your razor head provides a better shave. For optimal performance, clean regularly. This item is a replacement part. Please verify the images match your model. Color: Black + Silver Material: Plastic + Metal Package Contents: 2 x Shaver head 1 x Cleaning brush Only the above package content is included; other products are not included. Note: Lighting and display differences may cause slight variations in color. Measurement may vary by +/- 1-3 cm.