A rotatable top for use with a container for measuring, mixing, and dispending drinks. In some instances, the implantable pulse generator can be implanted into a burr hole in the skull made for insertion of the lead into the brain. The synchronization unit generates, based on a comparison of the first and second input signals, an output signal causing an actuator to move the second fitting or removal tool synchronous to the first fitting or removal tool in said substantially radial direction. Thus, the disclosed principles reduce the need for internal IT resources to manage the deployment and updates of client software on the target device. The slider includes a separator and the separator engages the first flange and the second flange during deocclusion of the fastening strips. There is also a rigid end cap having a sealing shirt and a securing skirt having a securing attachment matching that of the neck.