This bead has a wood core in it that can be re-drilled or taken out so as to fit dreadlocks. The beads average between 3/4" and 7/8"and they are about 1/2" hole-to-hole, every one is different. To remove the plug, I usually wet the bead and let it sit an hour or so. Then I tap on the plug with my pliers and it usually comes loose and can be pulled out. Sold individually. 18 pieces in stock Prod752