This suction-based massager has 7 different suction modes. With a portable charger, it can be conveniently used anywhere. It has auto-cleaning function and therefore easy to clean. Its design stands out due to its ergonomic shape; in addition, it runs at a very quiet noise level. 7 sucking functions. Memory Function. Material: Silicone. Zinc Alloy. USB rechargeable. Dimensions: Overall Length - 5 inches. Overall Width - 1.5 inches. Width of Air suction part - .70 inch.