To make entire standing bottles, half-bottle shapes must first be cast in this mold, then unmolded and glued together with melted chocolate. To make whole bottles before unmolding the chocolate, two of this mold are needed. Each half-bottle mold has nubs and holes. The holes of one mold connect to the nubs of the other, and vice versa. The half-flagon cavity bulges out less at the neck and more at the bottom, about 20mm. Overall size of mold 7 inch x 11 inch. Rigid clear polycarbonate virtually unbreakable.