The Dr. Laura Berman Intimate Basics Collection™ is designed by women, for women to give you and your partner exactly what you need; color, ergonomic designs, discreet packaging, superior quality, quiet and powerful devices. For pleasure and to strengthen your pelvic muscles Vibrating, multi-speed handle 3 interlocking, graduated stacked dilator sleeves for custom girth selection Soft universal sleeve ABS (massager, dilator sleeves) TPR (universal sleeve) 2 AA batteries 4.5”x 1.5”/ 11.5 cm x 3.75 cm (universal sleeve) 3.5”x .75”/ 9 cm x 2 cm (small sleeve) 4.5”x 1”/ 11.5 cm x 2.5 cm (medium sleeve) 6.75”x 1.5”/ 17.25 cm x 3.75 cm (large sleeve)