Wow. The shear sight of this device would make most drop to their knees for mercy. This HUGE all stainless steel vaginal speculum was designed for large animals. Used for diagnostic examinations and or other procedures. Excellent quality, being made of surgical stainless steel it can be processed for frequent sterilizations and long life. To operate speculum simply turn the hand screw until desired opening is achieved. Measurements: Length from end to end of the entire instrument is 17 inches with a maximum spread of near 4 inches. The length from end to end of the speculum blades is 13-3/4 inches. The baseball in the photos gives a sense of proportion and size. This is the King of Speculums for the most eXtreme edge players. It tips the scale at 2.6 lbs.