Laura Berman, LCSW, PhD has been working as a sex educator and therapist for 20 years, and is considered a leader in her field. Her latest book, "Real Sex for Real Women" is an international Best Seller. Sensually soft, ribbed, seamless massager with incredible power. 7 functions of vibration, pulsation, and escalation. Touch sensitive push button activation. Unscented TPR (massager) ABS with PU Cote (cap) ABS with Silver Plating (ring) Silicone (control button). 2 AAA batteries. 5.25"x 1"/ 13 cm x 3 cm.