Iroha Zen Vibrator from Tenga. Size 1.3 inches in depth by 1.3 inches in width by 5 inches in height. Bulk weight 2.5 ounces. Vibration settings: 3 speeds, 1 pattern. Materials body safe Silicone shaft, ABS plastic base. Other specifications: features iroha's Soft Touch Silicone and dust proof coating. Battery powered. Vibrator requires 2 AAA batteries (tester batteries included). Running time approximately 4 hours at maximum strength. Waterproof up to 20 inches.