The RAM Tab-Lock spring loaded, quick release holder with a keyed lock offers a secure fit with easy access to the mounted tablet. The keyed lock offers theft deterrence and unwanted tampering in public settings. The interchangeable cup ends are designed specifically for the Samsung Galaxy Tab A 8.0 and 8.0 with S Pen with Otterbox Defender case. The spring loaded design makes it easy to insert and remove your tablet, along with keeping it secure in mobile applications. The custom end cups are designed to optimize the functionality of your tablet, enabling access to all ports and tablet functions. Included is a set of four nuts and bolts to connect the cradle to any RAM components or mounts that contain the universal AMPs hole pattern. The Tab-Lock™ cradle is compatible with any tablet that will fit the dimensions listed below. It is important to verify the dimensions of your tablet when determining the overall size. Cradle Dimensions: Height: 8.88" to 10.2" Width: 5" to 5.88" Depth: 0.3" to 0.67"