Large Hole Beads (Greek Ceramic Beads, glazed Jet): Ceramic bead in a loosely formed cornflake shape, glazed Jet, ° 15mm. We use them as spacers and as bead caps. These ceramic beads in glazed Jet are exceptionally hard wearing due to the high temperature used when firing the glazed Jet color onto the ceramic base. In addition ceramic beads are very heavy and impossible to break. These are beads with up to 4mm large holes, very individually shaped--not for perfectionists.