Deep Throat Training 5/8"
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Recommended for open bore options
The Deep Throat Training 5/8" is a slim-profile, entry-level silicone trainer specifically engineered to help users safely build tolerance and overcome the throat gag reflex. Formulated from medical-grade Platinum-Cure silicone, this specialized tube is calibrated to accurately emulate natural body texture, weight, and internal density. Starting at a manageable 12.0” (304.8mm) depth and incrementally available up to 18.0” (457.2mm), it provides an accessible starting point for progressive oral conditioning and throat control.
Anatomical Design & Core Specifications
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Smooth Rounded Tip: Features a gentle, rounded entry dome designed for seamless placement and comfortable, low-friction passage along the palate.
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Slim Entry Diameter: At 5/8” (0.625” / 15.9mm) in diameter, this model offers a narrow, approachable size ideal for beginners or those starting early-stage reflex desensitization.
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Continuous Airway Bore: Configured with a standard 7/32” (0.219” / 5.6mm) open center borehole to allow continuous airflow and liquid drainage during use, with solid-core builds available upon special request.
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Variable Depth Range: Available in starting lengths from 12.0” (304.8mm) up to 18.0” (457.2mm) to support step-by-step depth training.
Dimension & Modular Profile
| Feature / Dimension | Imperial Value | Metric Value |
| Shaft Diameter | 0.625" (5/8") | 15.9mm |
| Standard Center Bore | 0.219" (7/32") | 5.6mm |
| Available Length Range | 12.0" – 18.0" | 304.8mm – 457.2mm |
| Tip Profile | Rounded Dome | Rounded Dome |
👑 Bob's Choice Recommendations
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Experience Level: Beginner / Entry-Level Oral Training. At 5/8" (15.9mm) in diameter, this is the ideal starter piece for users beginning their gag reflex desensitization journey before transitioning to larger column diameters.
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The Prime Density Recommendation: Bob recommends selecting the Semi-Erect / Medium (#10) firmness level. This provides sufficient column structure to guide the slender tube smoothly without bending unexpectedly, while keeping the outer surface yielding and soft against sensitive tissues.
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The Ultra-Pliable Alternative: For users who are exceptionally sensitive to gag triggers or want maximum flexibility, Bob suggests ordering in our extra-soft #00-20 (Extra Soft) composition.
Color Options: #18 and #30 are available in pure translucent. #00-20, #00-50, and #10 base colors are translucent white and can be mixed with any standard color.
⚠️ Important Safety Disclaimer: Oral training should always be performed slowly, with proper care, and never forced. By purchasing, you accept full responsibility for safe use. If you experience pain or respiratory distress, cease training immediately.