Smooth. seamless. discreet bullets adorned with fine white crystals. Extended battery life: 8 hours at low speed. 4 hours at high speed. Intense AAA battery power. Whisper quiet. Unlimited power with incremental speed control. Luminous light with one tap shut off. Durable ABS with Metallic Plating. 1 AAA battery. 3.5x .75/ 9 cm x 2 cm.