SH50 Replacement Heads for Series 5000 Shavers, Compatible with Series 5000 (S5xxx), PT8xx. Fits models: S5390, S5400, S5420, S5008, S5010, S5011, S5013, S5015, S5040, S5042, S5050, S5070, S5075, S5076, etc. Shaver head compatible with S5100, S5110, S5115, S5130, S5140, S5170, S5205, S5210, S5211, S5212, S5230, S5251. For maximum shaving performance, replace shaving blades every 12 months. After installation, apply a small drop of baby oil on each head and run the shaver for 10 seconds. Replace shaver heads every 12 months to restore optimal shaving performance. Color: Black Material: Plastic and Metal Package Contents: 2 x Replacement Heads Only the above package content is included; other items are not part of this package. Note: Light reflection and different display screens may cause slight color variations between the image and the actual item. Measurement may vary by 1-3 cm.