Designphil Midori Letter Opener Magnetic Letter Beige 49737006A letter cutter with a strong magnet built in on the back. It can be used in place when you want to use it by fixing it to metal doors or walls. To open simply slide the envelope into the groove of the main body. Even if there are thick envelopes or crushed corners it can be opened without stress. The blade is made of durable ceramic. It can be opened up to about 5000 ways. You can also replace the blade when the blade is chipped or the cutting edge is reduced. Product Name: Midori Letter Opener Magnetic Letter Beige 49737006