Attaches to hobby rotors and small flexible shafts for hobbies, carving, and precision processing; For precision processing of glass carving, model crafts, name holders, etc. Size (H x W x D): 4.1 x 2.4 x 0.2 inches (105 x 60 x 6 mm) x 0.2 inches (6 x 6 mm) Weight: 0 g)