Japan imported TENGA Cup exquisite black and white 

White: representative ultra softness， as a special soft， take you into the soft parcel. 

Black: to strengthen the degree of friction on behalf of rigid， relatively tight， super tight for you to contact.

Delicate white super soft cup type: 

Soft plump bring a very delicate internal floating-point friction feeling， perfect detail allows you to generate the illusion of nerve endings being provocative， extraordinary pleasure beyond words.

Internal structural analysis (with reference to the internal structure): 

(1) endless fine floating-point design， giving you delicate caresses; 

(2) spherical floating-point design， full massage your penis and Coronal; 

(3) particulate floating point tight "bite" to live the penis， while drawing more lustful sound of the collision; 

(4) a one-way air valve， to avoid leakage of the lubricating fluid， while increasing the suction force of air in the cup. 

One-way air valve appreciate the charm of innovation and technology in Japan: 

When inserted， the two ends of the lumen of the air outlet valve is extruded along the lumen. 

When withdrawn， the check valve so that air can not flow back to the extruded lumen， thus increasing the air pressure to the lumen. 

Increase the air pressure difference between sucking force， enjoying the feeling of contact with the vacuum.

Real black bear exquisite cup: 

With memory function and high-strength transparent latex elastic material after extrusion and impact， not restitution immediately， but slow recovery. Which to some extent， so that when the penis is inserted more smoothly， and increase the resistance of the penis pulled out of one into one between， you can feel a strong sense of fall brings wonderful stimulation.

Internal structural analysis (with reference to the internal structure): 

1) 4 sections blank design， so you have to break through the layers of satisfaction;

(2) spherical floating-point design， full massage your penis and Coronal; 

(3) 4 screw ball， firmly grip the base of the penis， while giving gentle caress; 

(4) a one-way air valve， to avoid leakage of the lubricating fluid， while increasing the suction force of air in the cup. 

One-way air valve appreciate the charm of innovation and technology in Japan: 

When inserted， the two ends of the lumen of the air outlet valve is extruded along the lumen. 

When withdrawn， the check valve so that air can not flow back to the extruded lumen， thus increasing the air pressure to the lumen. 

Increase the air pressure difference between sucking force， enjoying the feeling of contact with the vacuum.