Brand new, in-box Park Tool 100-3D professional bicycle repair stand clamp. Never used, never installed. Comes exactly as shown. 

100-3D Features

Clamp capacity: round and aero tubes from 23 to 76 mm (7/8" to 3") wide

Jaw height: 70 mm (2.75")

Replaceable jaw covers (part #1960)

Compatibility:

PRS-2, PRS-2OS, PRS-2.2, PRS-2.3

PRS-3, PRS-3OS, PRS-3.2, PRS-3.3

PRS-5 (manufactured before 6/96)

PRS-4, PRS-4OS, PRS-4.2, PRS-4W

PRS-12

PRS-30, PRS-30LB

PRS-33, PRS-33.2