3 3-Way Centering C-Clamp Woodworking Vise Holder Tools This is a new set of three 3 way "C" clamps These are great for carpentry They have a 2 1/2" (62 mm) capacity and a throat depth of 2 1/2" (62 mm) Each measure approximately 5 1/4" x 5 3/8" (133 x 137 mm)