Abstract: A flexible arm apparatus 1 that has a base clamp 10, a support arm 75, an interface attachment 100, and capable of receiving an attachment 131, 140, or 150. The base clamp 10 has a threaded knob 43 that is rotatably secured at two ends and is used to move a second jaw 17 relative to a first jaw 12. The rotation cup 80 is secured into the top of the base clamp 10 with a retainer ring 87. The rotation cup 80 receives a first end 77 of the support arm 75, and a second end 78 is received by the interface attachment 100. The interface attachment 100 comprises a lower interface component 101 and an interface-mid component 102. Changeable attachments 131, 140, and 150 are securable to the interface attachment by use of a pringle 131 or 141. The rotation cup 80 and the retainer ring 87 allow angular rotation of the first end 77 of the support arm 75 relative to the clamp base 10.