Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The illumination device can include a gun grip cover configured to attach to a gun grip. The support unit comprises a connecting base unit fixedly disposed to the back of the display frame unit, an inclining module pivotally coupled to the connecting base unit, and a rebounding module on the back of the display frame unit in elastic connection with the inclining module. The light guide is then removed from the mold assembly. The anchor body is provided with an exit passage from which the first and second ends extend, and a loop passage going through the first wall and facing the hook, the intermediate portion extending from the loop passage to form a loop going through the slot and around the bony structure.