[Professional precision]: The Series 5/6 53B foil head shaver replacement heads are made of high-quality materials with good waterproof and rust- properties, making it easy to remove and clean after shaving. [Fit model]: Compatible with for Series 5/6 53B electric shaver replacement head,model 6072cc, 6090cc, 6020s, 6040cs, 6075cc, 5018s, 5049cs, 5035s, 5020s, 5050cs,Compatible with All Series 5/6 Electric Shavers, 53B. [Warm Tip]: Ecommended that you replace the shaver head every 18 months,to reduce the degradation of shaving performance,and clean regularly. Colour: As Shown Material: plastic+Metal Package Contents: 4 x shaver head 2 x clean brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.