Glass is our most sought after filler option. With the quenching process, its impact resistance is increased by up to eight times compared to ordinary glass. When broken, the glass bursts into small pieces, so the risk of injury is minimized. In practice, dimensions of a minimum of 10 millimeters are most commonly used. It can be designed at the request of the customer, and those who opt for this type of fill should keep in mind that all types of processing and cutting are to be performed before quenching.