After the hangers are pushed into the board, there is a another small prong that you push in with your thumb or a small tool. When you push this prong in, it locks the hanger into the foam board or card board. You can see this prong in the image above. It is the larger prong on the top side of the image above.
Rockland Boulders Baseball. Rockland Boulders Baseball. The Rockland Boulders is a , minor league professional baseball team located in Ramapo, NY. The Boulders play in the Canadian-American Association of Professional Baseball (Can-Am League), which stretches across the Northeast United States and Quebec, Canada.
1 Class A - This level of play is just above the rookie team. Some major league teams, such as the Devil Rays, have both A and advanced A clubs playing in two different leagues.  Class AA (Double-A) - Players are more experienced at this level (average age is 23) and more likely to jump from here to the majors.