On a glass factory. CU of glass turning, heating, in glory hole (furnace). Workers roll and smooth glass. CUs of glass rolling. Shapes slowly into a chalice tall bowl-like container. Calipers are used to check the dimensions of the ball. The ball is put back into the mouth of the furnace. The two parts of the ball are joined together. Cutting off the excess glass round its rim with clippers. CU the crystal bowl put on a display plinth, lit from behind.