Cute mini size Double Terminated (DT) points. Double terminated points are a great tool for directing the flow of energy as energy passes in one end and thru the crystal and out the other side, tuning into that crystal's vibrational frequency along the way. These little guys are a favorite of mine to use for crystal gridding for this very reason. There are many available types of mini DT's and you can choose one or multiples of fluorite, black onyx, opalite(man-made),  clear quartz, green aventurine. Proce is for one mini sized DT that will be intuitively selected.