... , strip, ball, second model etc.Usage: to be used as optical parts of the telescope, microscope, camera, guns aiming scope, and ... and shine ,looks like natural crystal. Luxury lamp decorations made from lead-crystalloid glass are indispensable for deluxe hotels, modern house ... . It can echo with metal ringing when struck. Handcraft made from lead-crystalloid glass is nice decoration too.At present, we ...