Glow in the dark makes the dick attractive! It can be placed on the base of the penis or the glans. It is mainly used to slow down the blood flow out of the penis tissue after erection, thereby increasing the erection time and hardness of the penis. When the penis and glans are maintained in a fully congested state, every touch and friction will become soft. More sensitive, enhance the pleasure of sex. It is suitable for users with erectile dysfunction, trouble with early ejaculation or preference for tight constriction.