The Kupo Turtle Base - Silver is a reliable replacement part for the one that comes with Master C-stands. It comes with a zinc-alloy base casting that is five times more durable than aluminum. It can thus support the weight of heavy sandbags and people standing on it. The hollow junior pin receiver enables debris to pass through for easy maintenance and cleaning. Also, the patented spring-ring locking system makes it possible to open and close the base in a second.