jablonex czech glass teardrop beads (50 pack), 9mm (smoke topaz) jablonex czech pressed glass beads are manufactured by heating a rod of glass until molten and pressing into molds where it is stamped and holes are pierced. the beads are then rolled in hot sand to soften seam lines and remove flashing. these versatile teardrop beads are top-drilled for hanging from jump rings or string.