Heavy duty, adjustable rectum stretcher! 

Lock and key prevents it from being over tightened. 

Total circumference of the widest point is 6 inches. The diameter when fully open is 1.75 inches wide. The total weight with the plug, lock, and keys is 650 GRAMS.  Ribber O-Ring keeps tension on the three pieces so they are tight. 

PL-RS-99