SEI MIO Perfectly Pegged Adjustable Strap-On Harness with 5-Inch Silicone Dildo Set

Product Overview

This complete strap-on system pairs a comfortable, universally adjustable harness with a beginner-friendly 5-inch silicone dildo designed specifically for pegging play. The harness features a four-strap design with sliding adjusters that accommodate waist sizes from approximately 28 to 52 inches, distributing pressure evenly across the hips and ensuring the dildo stays positioned exactly where you need it during use.

The included dildo measures 5 inches insertable length with a gently tapered shaft and pronounced head for easy insertion. Made from body-safe silicone with a velvet-smooth finish, it provides enough presence to deliver satisfying sensations without overwhelming beginners. The slightly curved design targets the prostate naturally when used for pegging.

Harness Construction

The harness uses a lightweight yet durable fabric construction with reinforced stitching at all stress points. Four adjustable straps—two around the waist and two around the thighs—create a secure fit that stays in place during vigorous activity. The straps feature metal slider buckles that allow for quick, precise adjustment and won't slip once tightened.

The front panel incorporates a strategically placed O-ring holder with three interchangeable silicone O-rings in varying diameters (1.5 inches, 1.75 inches, and 2 inches). This compatibility system lets you swap the included dildo for other dildos with flared bases, expanding your options as you explore. The silicone rings grip firmly without damaging your toys, and they're easy to remove and clean separately.

A discreet pocket sits behind the O-ring panel, sized to hold a standard bullet vibrator (sold separately). Adding vibration transforms the experience for the wearer, providing direct clitoral or vulvar stimulation that makes pegging mutually pleasurable.

Dildo Specifications

Material: Premium body-safe silicone

Total Length: Approximately 6.5 inches

Insertable Length: 5 inches

Maximum Diameter: 1.4 inches

Base Diameter: 2.5 inches (compatible with included O-rings)

Texture: Smooth with subtle head definition

Flexibility: Semi-firm with slight give

Color: Typically flesh tone or neutral shade

The dildo's measurements make it accessible for first-time anal play while still providing enough length and girth for experienced users to enjoy. The firm-yet-flexible silicone maintains its shape for easy insertion but has enough give to move naturally with the body. The flared base prevents over-insertion and seats securely in the harness O-ring.

Usage Considerations

This harness works for users of all gender identities and body types. The adjustable design accommodates different hip and waist proportions, and the thigh straps prevent the harness from riding up or shifting during use. First-time users should take time adjusting all four straps to find the optimal tightness—snug enough to keep everything stable, but not so tight it becomes uncomfortable during extended wear.

The silicone dildo is compatible with water-based and hybrid lubricants only. Avoid silicone-based lubricants, which can degrade the material over time. Start with generous lubrication and proceed slowly, especially if your partner is new to receiving penetration. The curved design helps target the prostate when the wearer angles their hips slightly downward during thrusting.

Care Instructions

Wash the harness straps by hand using mild soap and warm water, then air dry completely before storage. The silicone O-rings and dildo can be cleaned with toy cleaner or washed in warm soapy water. For thorough sanitization, boil the silicone components for 3-5 minutes or run them through the top rack of your dishwasher (without detergent). Store the dildo separately from other silicone toys to prevent material reactions.

What's Included

• Adjustable four-strap harness with O-ring holder
• 5-inch silicone dildo with flared base
• Three interchangeable silicone O-rings (1.5", 1.75", 2")
• Integrated bullet pocket (vibrator not included)