Sono No.49 Hollow Tunnel Plug Small Clear

Progressive ring-stacking geometry initiates penetration via minimal-width interface, systematically expanding inward as insertion-advancement continues, transforming singular apparatus into graduated-expansion sequence. Hollow-tunnel internal-architecture permits supplementary-payload insertion post-apparatus-positioning, bullet-vibrators, lubricant-injection, or specialized-fluids integrate seamlessly. Small-dimensional proportioning establishes beginner-friendly accessibility.

Transparent TPE construction permits visual-penetration-monitoring. Three-size series facilitates graduated progression-pathway.

Specifications:
• Material: Thermoplastic Elastomer (TPE)
• Waterproof
• Phthalate-free