These are a witches dream. Each one will be intuitively chosen for  you, as each tumbled clear quartz will be different.  These are about 4-5 inches long with natural stones soldered on top. The points are amazing for carving your sigils into your candles .
Clear quartz is the master amplifier so can enhance your own intentions. It is also used for purification and clarity. It can transform low vibrations into higher ones.