Multiple toggle switches may be mechanically interlocked to prevent forbidden combinations. Stripwound hoses consist of spirals that are loosely interlocked. The pieces are interlocked and riveted to a cloth or leather backing. Stoddart has pioneered the use of mechanically interlocked molecular architectures to create nanomechanical systems. The armor was homogenous steel plate, welded but also interlocked for strength. Most specifications are focused on single protocols rather than tightly interlocked systems. The timber is generally straight grained but may be wavy or interlocked. The State Council and the Communist Party of China are also tightly interlocked. Hands together, pinkies and ring fingers interlocked (often on the inside). Volumetric objects are structures composed from block-like modules interlocked in a grid. Hands together, fingers interlocked, with the fingertips inside. The poles of the rotor look like fingers of two hands interlocked with each other. These related bends differ by the way the two constituent overhand knots are interlocked. Unlike mail armour, the rings are not physically interlocked with each other. These three poles are interlocked so that they form a tripod.