Includes 1 retractable copper probe, 1 stainless steel starlight probe, and 1 silver stainless steel manual acupuncture pen for locating auricular points and applying pressure to painful points.The acupuncture pen is lightweight and portable and can be easily carried in your pocket, purse or bag; it's a good choice to use the acupuncture pen to relieve aches and pains while traveling or after a long day at work.The massage tools are made of stainless steel and are sturdy and durable. The handle has a textured surface that allows for an easy and secure grip on the acupuncture probes.The gold-colored acupoint stimulation pens are 0.3 inches and 0.1 inches in diameter, the stainless steel probes are 0.15 inches and 0.1 inches in diameter, and the stainless steel manual acupuncture pen is 6.37 inches in length.The tip of the acupuncture pen has a solid ball for precise stimulation of the acupoints and is equipped with a spring that prevents accidental forceful pressure on the acupoints.