Black GRB 75 silicone colon tube with tapered Tip B and white GRB 75 with bumpy Tip A resting side-by-side on a blue grid.
White and black GRB 75 flexible silicone colon tubes crossed over each other on a measurement grid demonstrating tip profiles.
Comparison of Tip A and Tip B silicone colon tube designs, showing black, white, blue, and pink color options on a grid background

GRB 75 12", 14",& 16"

Regular price$39.00
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The GRB 75 is a shorter version of the CT-75 design, using the same basic segmented shaft with a retention ball near the base. The main shaft is approximately 1" in diameter, with the segmented sections providing a gradual change in diameter along the length. Near the base, the shaft expands to a 1.3" retention ball before narrowing into a 0.9" retention valley and then widening again at the 1.5" base. Tip A has a bumpy profile, while Tip B has a smooth tapered tip.

Details

  • Available lengths: 12", 14", and 16"

  • Recommended insertion: approximately 11", 13", and 15", respectively

  • Main shaft diameter: 1" (25.4 mm)

  • Retention ball: 1.3" (33.0 mm)

  • Retention valley: 0.9" (22.9 mm)

  • Base: 1.5" (38.1 mm)

Choosing your silicone firmness

For the GRB 75, Bob recommends #10 Medium. The firmer material gives the segmented shaft more structure while still allowing it to flex.

Color options

#18 and #30 are available in pure translucent silicone.

#00-50 and #10 use a translucent white base and can be mixed with our standard colors.

Please note

The GRB 75 is a long segmented design intended for users who are already comfortable with longer colon nozzles. The 12", 14", and 16" versions allow you to choose the length that best fits your experience and intended use.

Anatomy varies, and no single size or shape will work for everyone. Use appropriate lubrication, never force insertion, and stop if you experience pain or significant discomfort. Inspect the nozzle before each use and do not use it if damaged.

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