This is our BLACK Plastic Needle Hammer! It is made of a Durable Plastic with a VICIOUS head containing SEVEN (7) Super-Sharp Stainless Steel NEEDLES on one side and a CLUSTER of needles on the opposite side and measures approximately 7.5" long. The needles on this instrument are sharp. The lightweight handle is designed to flex and if you hold it near the tip this little darling really gets bouncing! It has the BEST bounce of all 3 of our Needle Hammers. We've used ours all over the body, but most often for CBT, on the Breasts and also on the Female Genitalia. The needles on this item are SHARP and will draw blood if not used with caution.