Abstract: An example of a jump-deterrent apparatus for a turnstile arm includes a turnstile arm receiving member having a tubular section defining a hollow interior through which a turnstile arm can extend along a common axis with the hollow interior. A jump-deterrent section of the turnstile arm receiving member extends radially outward with respect to the common axis. The jump-deterrent section defines a physical barrier extending above the turnstile arm when the turnstile arm is extending through the hollow interior.

Abstract: A device for displaying advertising from a turnstile arm includes opposing collars securing a sleeve displaying the advertising. One collar is frictionally secured to the arm using an O-ring carried in a groove within an inside wall surface of an opening through which the arm passes. A flange extending fully around the outside surface of the collar provides a snap-fit into a groove within one end of the sleeve. The outside surfaces of the collars make a smooth transition to the connected sleeve. A second collar includes a clamp is carried within its opening securing the second collar to the turnstile arm. Two recessed portions have a bore extending through the second collar through which fasteners extend for adjusting the clamping. A notch extending around the second collar receives the sleeve.