The Mate 40 case in blue of the Crazy Horse Leather Bookcover Series for everyday use No details have been forgotten in this beautifully crafted Mate 40 case. It protects your Mate 40 from bumps, dust and scratches in any situation. Inside the Mate 40 Bookcover in blue are card slots for your most important credit cards and an extra pocket for bills or bills. It is easy to open and close with the magnetic closure. In addition, the back of this Mate 40 case can also be converted into a stand for horizontal viewing. This Mate 40 phone case has everything you could want, both visually and physically.