Upgraded version razors for men with stronger-than-steel blades stay longer . Lubrication strip glides to help protect your skin from redness Advanced skin guard helps stretch your skin, and prepares your hair to be harmed. new quality Easy to replace every 3-6 months Item Name: Blade Head Fit:S7000 S7310 S7370 S7530 S7780 Colour:Blue Material:metal Package Contents: 2 x cutter head adapte Only the above package content, other products are not included. Note: Light 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. Note: 1.Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 922 hours Hope you have a pleasant shopping experience!