The Model B is a 12" colon nozzle with a tapered entry followed by a large egg-shaped bulb, a ribbed mid-section, and a second rear ball.

The tapered tip leads into the 1.875" primary bulb. Behind the bulb, the shaft narrows to 1.2" and has three 1.4" ribs before expanding again to a 1.8" rear ball. The body then narrows to a 1" retention valley before reaching the safety flange.

Details

• Overall length: 12" (30.48 cm)

• Tapered tip: 2" long × 0.75" (1.91 cm) diameter

• Primary bulb: 2.5" long × 1.875" (4.76 cm) maximum diameter

• Mid-shaft: 1.2" (3.05 cm) diameter

• Mid-ribs: 3 ribs, approximately 1.4" (3.56 cm) maximum diameter

• Rear ball: 1.8" (4.57 cm) diameter

• Retention valley: 1" (2.54 cm) diameter

• Safety flange: 2" long × 1.9" (4.83 cm) wide

Choosing your silicone firmness

For the Model B, Bob recommends #10 Medium. The medium firmness gives the long piece enough structure to hold the larger sections while still allowing the shaft to flex.

#00-50 Soft is also available if you want a softer, more flexible piece.

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 Model B is a long, large-diameter design with a 1.875" primary bulb and a 1.8" rear ball. It is intended for experienced users who are already comfortable with longer nozzles and larger expansion sections.

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.