• 🇯🇵✈💰 J-List  
• 🇯🇵✈💰 KanojoToys
• 🇺🇸✈💰 CoolMST
• 🇺🇸✈ToyDemon
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• Japanese product name: ソフトチューブ・カップ

This one enables you to “squeeze” the walls to variate stimulation. The internal structure doesn’t differ much from the Deepthroat’s except it has a “ribs-passage” instead of the tightening zone. Overall good but unimpressive.

From the same series:

• Deepthroat
• Soft Tube
• Rolling Head (not reviewed)
• Double Hole (not reviewed)
• Air Cushion