The CT-152 is a 2" (50.8 mm / 152 French) diameter colon tube available in different lengths and configurations.

Shorter versions can be used as a large-diameter nozzle, while longer versions provide additional reach. The CT-152 can be made with either a smooth tapered tip or a graduated ribbed tip.

You can choose the overall length, tip style, bore size, flange configuration, silicone firmness, and color.

Details

• Main shaft diameter: 2" (50.8 mm / 152 French)
• Tip options: Smooth tapered Tip B or graduated ribbed Tip A
• Flange: Retention-style flange or no-flange base
• Length: Custom length available

Tip B — Smooth Taper

Tip B has a rounded entry that gradually increases in diameter before reaching the full 2" shaft diameter.

• Taper length: approximately 6–8"
• Smooth transition into the 2" main shaft

Tip A — Graduated Ribs

Tip A uses a series of progressively larger ribs and valleys before transitioning into the full 2" shaft.

• Initial entry: 0.75"
• First rib: 1.4"
• Valley: 1.2"
• Additional ribs: 1.4", 1.45", and 1.5"
• Mid-shaft section: approximately 2" long, tapering from 1.35" to 1.45"
• Final ribs: 1.7", 1.8", and 1.9"
• Main shaft: 2"

Flange Options

The CT-152 is available with a retention-style ball flange or with a no-flange base.

Choosing your silicone firmness

The CT-152 is a large, relatively heavy tube, so silicone firmness becomes more noticeable as the length increases.

For shorter builds, Bob recommends #00-20, #00-50, or #10, depending on how firm you want the piece.

For longer builds, #00-50 is Bob's preferred choice for this design.

If you're unsure which firmness to choose, we recommend ordering our silicone firmness samples first.

Color options

#18 and #30 are available in pure translucent.

#00-20, #00-50, and #10 are translucent white base materials and can be mixed with standard colors.

Please note

The CT-152 is a large-diameter design intended for experienced users. Longer versions add considerably to the overall size and weight of the piece.

Everyone's anatomy is different, and we cannot guarantee that a particular length or diameter will be suitable for everyone.

Use appropriate lubrication, never force the product, and stop if you experience pain or significant discomfort. Inspect the silicone before each use and do not use the product if it is damaged.