There is distortion on the inside. See photo 4. [Compatible Models] Specifically designed for the Vankyo Tablet Z4 / Z4 Pro 10.1-inch tablet. [Built-in Magnet] With a built-in magnet, the cover closes perfectly even without a belt. You can freely perform all operations such as charging and pressing various buttons while the case is attached to the Vankyo MatrixPad Z4 tablet. [Full Protection] Made of flexible PU leather material, it feels good to the touch. Even if dropped, it can absorb shocks and scratches, and also prevents water and dirt from seeping in. The synthetic leather exterior and soft interior protect the tablet body firmly. Vankyo Z4 Case MaKstu Lightweight Slim Vankyo Z4 Pro Case Soft PU Leather MatrixPad Z4 Cover Magnetic Two-Fold Type Protective Case with Stand Function Shockproof Scratch Resistant Full Protection Vankyo MatrixPad Z4/ Z4 Pro 10.1 inch Universal Tablet PC Case (Green) 1901 ※ Although it is 《Brand New》, it has been opened, so it is listed as 《Like New》. ※ Operation has not been confirmed.