GRB 36

Discover an exceptional blend of progressive depth control and multi-stage fluid containment with the GRB 36. Expertly engineered within our premier Graduated Retaining Ball (GRB) design series, this 9.0" (228.6mm) medium-length silicone colon nozzle is designed specifically for users seeking a high-retention ball profile without the intense threshold volume of larger traditional plugs. Featuring a unique sequence of three progressively larger, graduated expansion beads, the GRB 36 offers superb functional control: the repeating waves allow you to choose your preferred depth of insertion, while the final smooth oval ball creates an incredibly comfortable natural muscle anchor that blocks fluid backflow, minimizes leakage, and reduces early abdominal cramping.

Three-Stage Graduated Geometry & Sigmoid Fluid Delivery

• Sigmoid Comfort Reach: At 9.0" (228.6mm) overall length, the 2.25" (57.1mm) tip delivers solution directly into the lower sigmoid colon, ensuring a deeper fill that minimizes early muscle contraction and cramping.

• Three-Tier Graduated Node Column: Features a progressive staircase staging from a 1.0" (25.4mm) initial bead to a 1.1" (27.9mm) secondary bead, capping off at a 1.4" (35.6mm) final oval anchor bulb split by deep relaxation valleys.

• High-Leverage Retention Valley: Drops back into a 1.0" (25.4mm) long by 0.75" (19.0mm) diameter base valley neck, letting pelvic floor muscles rest comfortably during hands-free anchoring against a wide safety flange.

Dimension & Feature Specifications

👑 Bob's Choice Recommendations

• Experience Level: Advanced Beginner to Intermediate Friendly Sizing. While the 7.5" insertable length offers advanced, deep fluid delivery, the narrow 1.0" to 1.4" graduated ball diameters make this an exceptionally gentle and easy-to-use option for newer users, small-frame individuals, or anyone transitioning to a longer-profile colon tube.

• The Prime Durometer Recommendation: For a multi-beaded, progressive profile like the GRB 36, Bob highly recommends ordering in our #10 (Medium) composition. At this length, our medium firmness provides the ideal sweet spot—offering enough flexibility to effortlessly follow your body's natural internal curves while retaining the structural toughness needed to bypass muscle contractions smoothly.

Color Options: #18 and #30 are available in pure translucent. #00-50 and #10 base colors are translucent white and can be mixed with any standard color.

⚠️ Important Safety Disclaimer: Because individual anatomy varies, we cannot guarantee a full fit for all larger diameter pieces. Please use all products with care. By purchasing, you accept full responsibility for safe use. If you experience discomfort, discontinue use immediately.