The RAM-MOUNTS^® patended ball system features an unparalled flexibility and shock absortion. There are several sizes of balls to be used depending on the weight of the equipment to be mounted and the severity of vibration and shock in a particular application. The size of balls in this section is the C, 38mm in diameter, being the ideal to mount portable computers, marine electronics, and other equipment with similar weight. Optionnaly you can visit the application and device dedicated pages in the left menus, for a wide view of the parts needed.