16.5 cm Adjustable Suction Textured Clear Masturbator — ViewTube See-Thru

transparent tunnel that lets you see the penis during action — the sleeve deforms with each thrust, the suction valve opens and closes with the knob. Manual stimulation, no motor, but the voyeuristic aspect changes everything compared to classic opaque masturbators.

The transparent tunnel puts the penis on display

The translucent body allows light to pass through its entire length. You see the sleeve compress, deform, push back with each pass. For visual enthusiasts, it's a step above an opaque masturbator that hides everything — especially when playing in front of a mirror or in a duo, the other person also sees what's happening.

Internal block-shaped textures that caress with each pass

The inside of the sleeve features a succession of rectangular blocks and hollows, made of a soft material that warms up on contact. The textures yield then regain their shape with each movement, creating a pulsating stimulation rather than a uniform glide. The skin-like material softens after a few minutes in contact with the body.

Suction valve adjustable with the knob

Rear cap with a rotating valve — you open it for free glide, you close it to create a vacuum effect with each withdrawal. With the valve closed, the sleeve sucks against the penis on the withdrawal motion, the embrace becomes much tighter. You switch between the two positions during the session to rekindle excitement when the rhythm sets in.

16.5 cm insertable, compact size

18.5 cm total length including 16.5 cm insertable, 5 cm internal diameter. Standard sizes for well-endowed individuals fit comfortably. The closed body at one end creates a passive suction effect even with the valve open. No electronics, no battery — you rinse with water, let it dry, store it.