Wristband Remote Petite Bullet Vibrator from Cal Exotics. Color Black. Made using body safe materialsSilicone, Stainless Steel. Power sourceUSB rechargeable, included. Featuresphthalate free, waterproof, rechargeable, vibrates. Allergens N/A. 90 day warranty. Maximum run time90 minutes. Maximum charge time50 minutes. Measurements 2.75 inches by 0.75 inch stimulator. 9.25 inches wristband circumference. Bulk weight 2 ounces. Package 6 ounces, 2 inches by 4.75 inches by 8.5 inches.