The Sentinel – Biomechanical Tentacle Depth Training Dildo Platinum Silicone | Biomech Design | Long Anal Dildo for Advanced Depth Play The Sentinel is here to crawl into your collection—and your depths. A visually arresting fusion of art and anatomy, this biomechanical depth training tentacle dildo is engineered to explore your limits. Its sweeping, curved shaft is adorned with exquisite textures that seem plucked straight from a dream—or a nightmare—of H.R. Giger. Every ridge, sucker, and fold enhances stimulation while supporting deep, controlled insertion. Whether you're just beginning your journey into depth training or you're a practiced explorer, this premium anal depth trainer offers a unique blend of aesthetic and function. The Sentinel doesn’t just fill—you’ll feel it move with every inch taken. FEATURES Unique biomechanical tentacle design for enhanced internal stimulation Long, curved shaft ideal for anal depth training and deep insertion Hand-sculpted detailing inspired by biomech and alien aesthetics Made from 100% platinum cure silicone – phthalate-free, hypoallergenic, and body-safe Easy to clean, flexible, and lube-compatible Available in customizable colors and finishes Optional Vac-U-Lock compatible base SILICONE YOU CAN TRUST All of our toys, including The Sentinel, are crafted using only the highest quality platinum cure silicone. That means no BPA, BPS, phthalates, lead, or any other nasties—just pure, durable, body-safe material that’s built to endure every descent. Whether you’re looking for a reliable depth trainer, a show-stopping anal sex toy, or simply a gorgeously sculpted long anal dildo, The Sentinel stands watch… ready to take you further. ANSWER THE CALL The Sentinel is more than a toy—it's an invitation to surrender to the surreal. With every thrust, every curve, every stretch, you’re not just pushing boundaries… you’re becoming part of the machine. Will you submit? Sentinel Depth Training Tentacle Dildo – Size Guide Small Tip Circumference: 4 cm / 1.57" Mid Shaft Circumference: 13 cm / 5.12" Widest Point: 20 cm / 7.87" Overall Length: 34.3 cm / 13.5" Insertable Length: 30.5 cm / 12" Medium Tip Circumference: 5 cm / 1.97" Mid Shaft Circumference: 13 cm / 5.12" Widest Point: 20 cm / 7.87" Overall Length: 41.9 cm / 16.5" Insertable Length: 36.8 cm / 14.5" Large Tip Circumference: 6 cm / 2.36" Mid Shaft Circumference: 16 cm / 6.3" Widest Point: 26 cm / 10.24" Overall Length: 61 cm / 24" Insertable Length: 53.3 cm / 21"