Erection Assistant 2 - Vibrating Hollow Strap-On - 9.4" Dildo
Erection Assistant 2 - Vibrating Hollow Strap-On - 7" Dildo
Realrock - 9" Hollow Strap-on with Balls
Hollow Strap-Ons: Wearable Extensions for Couples
A hollow strap-on is a dildo with an open channel inside, worn over or around the penis and secured with adjustable straps. It lets penis owners enjoy penetration with extra length, girth or firmness, keeps sex going when erections are unpredictable, and opens up new possibilities like double penetration with a partner. It's also a favourite with trans and non-binary people looking for a comfortable, wearable packer for play.
Our hollow strap-ons include realistic designs with balls, vibrating hollow dildos and adjustable strap systems that suit a wide range of bodies. Want a solid dildo instead? Browse strap-on dildos for couples, or go back to the complete strap-ons collection.
Choose your hollow strap-on
How a hollow strap-on works
The hollow shaft slides over the penis, which can be erect, semi-erect or soft, and the attached straps hold it firmly against the body. Because the wearer's penis sits inside the shaft, he still feels pressure and warmth during sex, while his partner enjoys the size and firmness of the dildo. Some designs include an opening for the testicles for extra stability.
Who uses hollow strap-ons?
Couples use them when erectile difficulties make penetration unpredictable, when they want to play with size, or to enjoy double penetration with the wearer's partner wearing one toy and using another. Trans men, non-binary people and anyone who wants a wearable phallus can also enjoy hollow strap-ons comfortably.
Getting the right fit
Check the internal length and diameter of the hollow channel against the wearer's measurements. The inside should feel snug but not tight. Adjustable elastic straps help the toy sit securely, and a little water-based lube inside the channel makes it easier to put on and more comfortable during sex.
Vibrating hollow strap-ons
Vibrating models add a small motor near the base so both partners feel the buzz: the wearer around his shaft, the receiver inside. They're a great way to make a hollow strap-on feel more connected and exciting for the wearer.
Talking about it as a couple
Introducing a hollow strap-on can feel like a big conversation, especially if it's linked to erection changes. Frame it as something new to explore together rather than a fix. Many couples find it takes the pressure off and makes sex more relaxed and playful.
Hollow Strap-Ons Compared
Compare sizes, features and who each option suits.
| Option | Size | Vibration | Beginner-friendly? | Try |
|---|---|---|---|---|
| Realistic hollow with balls | 9 inch | No | Yes | Realrock 9" Hollow |
| Vibrating hollow | 7 inch | Yes | Yes | Erection Assistant 2 7" |
| Long vibrating hollow | 9.4 inch | Yes | With practice | Erection Assistant 2 9.4" |
| Harness strap-on kit | 5.7 inch | Yes | Yes | Evolved Giving Vibes |
| Strapless strap-on | Medium | No | With practice | Fun Factory Share Lite |
