Bestlink Powerful Stone Pushing Air Bag for Removing Huge Marble/Granite Quarry Blocks Quarry block pushing air bag is used to separate the marble, granite, stones (rock mass) block from the basic rock achieving a maximum opening of 45-120cm at the top. The air bag can separate the block (rock mass) which is having all side wire saw cut faces. The standard configuration set contains two air bags, with one set of air hose & air control panel.