Deuce from SpareParts is the first harness designed especially for penis-owners.
Deuce is a solution that allows you to continue in between erections and is an excellent tool for double penetration.
Two separate holes allow for the penis to extend through one and a toy to extend through the other.
An internal pocket holds a vibrator for extra stimulation.
Leg straps lightly cross over the perineum for added pleasure.
Comfortable and completely adjustable, it can be worn for extended periods and makes it a great solution for men with erectile dysfunction.
Deuce Harness features:
- Materials: nylon, spandex, velcro
- Adjustable leg straps and belt
- Elastic and stretchy O-ring that expands and contracts to fit a variety of dildos
- The second opening below the O-ring accommodates the wearer’s girth and functions like a soft cock ring
- Option to place a mini vibe in the flaps of the first opening for extra stimulation
- Great for water play
Size and material:
- Size A Regular
- Belt: 20" - 50" / 50.8 cm - 127 cm
- Leg straps: 10" - 16" / 25.4 cm - 40.64 cm
- Diameter across dildo opening: 1.25" - 2" / 3.2 cm - 5.1 cm
- Circumference of dildo opening: 3.92" - 6.28" / 9.96 cm - 15.95 cm
- Diameter across penis opening: 1.5" - 1.87" / 3.81 cm - 4.75 cm
- Circumference of penis opening: 4.71" - 5.89" / 11.96 cm - 17.96 cm
- Size B Regular
- Belt: 35" - 65" / 88.9 cm - 165.1 cm
- Leg straps: 14" - 24" / 35.56 cm - 60.96 cm
- Same dildo and penis opening dimensions as Size A Regular
- Size A Magnum
- Belt: 20" - 50" / 50.8 cm - 127 cm
- Leg straps: 10" - 16" / 25.4 cm - 40.64 cm
- Penis opening diameter: 2" - 2.37" / 5.1 cm - 6.02 cm
- Penis opening circumference: 6.28" - 7.46" / 15.95 cm - 18.95 cm
- Size B Magnum
- Belt: 35" - 65" / 88.9 cm - 165.1 cm
- Leg straps: 14" - 24" / 35.56 cm - 60.96 cm
- Penis opening dimensions same as Size A Magnum
🔥 Pleasure Scale™ Rating
This Toy: 💘 Date Night Favorite
Brings excitement, connection, and definitely stays charged and ready.
Who is this harness for?
The Deuce Harness is ideal for:
- Penis-owners experiencing ED or premature ejaculation who want to maintain intimacy and enjoy penetration even when erections come and go.
- Anyone exploring double penetration—the dual openings accommodate both a penis and a dildo simultaneously.
- Transmasc folks seeking euphoria and control with gear that supports both penetrative and affirming play.
- Folks with limited hand or arm mobility who benefit from stable harness support for toy-assisted penetration.
How to use the Deuce Harness?
- Choose the right size based on your waist and thigh measurements before putting the harness on.
- Insert your dildo of choice into the stretchy O-ring at the front. Ensure a snug fit for stability during use.
- Slide your penis (if applicable) through the second lower opening for soft or erect play, or skip if not needed.
- Tighten the waistband and leg straps for secure positioning. Adjust for comfort and control.
- Add a mini vibrator to the internal vibe pocket for clitoral or perineal stimulation if desired.
Great positions to try:
- Missionary: Allows for eye contact and control of rhythm with harness support.
- Doggy style: Great for deep, steady penetration using your body weight with hands-free control.
- Rider-on-top: Encourages exploration with the harness wearer getting to relax and enjoy stimulation in between thrusts.
How to clean and care for the Deuce Harness?
- Cleaning: Hand wash in cold water with mild soap. Do not bleach or machine wash.
- Drying: Hang dry completely before storing. Avoid tumble dryers or direct heat.
- Lube compatibility: Harness does not touch genitals directly, but ensure dildos used are silicone-safe (use water-based lube).
- Storage: Store in a cool, dry drawer or pouch. Keep away from rough or sharp objects to protect the stretchy ring and fabric.
Harness practical use info:
- Double penetration: Allows for penetrative play with both penis and dildo at once.
- Prolong penetration: Continues the fun between erections or when length/stimulation needs vary.
- Water play approved: Quick-drying materials make it great for shower or tub play.
- Versatile: Suitable for cis men, transmasc folks, and anyone exploring adaptable gear.
Additional information:
- Erectile difficulties: Deuce can help maintain intimacy even with inconsistent erections.
- Motor limitations: Can assist folks with limited upper mobility by stabilizing toys during use.
Special considerations when using Deuce Harness:
- Mobility required: Some bending and adjusting needed to wear and tighten.
- Dexterity: Users need basic hand coordination to strap in and switch toys or place vibes.
User experience tips:
- Test fit solo before introducing during partnered play to get comfortable with the setup and adjustments.
- Pair with a curved dildo for prostate or G-spot stimulation and deeper penetration angles.
- Try a vibrating bullet in the harness pocket for extra sensation during double penetration play.
- Lube the penis opening slightly when going flaccid-to-erect to reduce friction with fabric lining.
- Wear it under clothing to surprise your partner during date night or for discreet kink vibes during roleplay.
- Allow time to fully dry if using in water—moisture trapped in layers may prolong drying time.