Tunnel Plugs · Master series
Master Series Invasion Hollow Silicone Anal Tunnel Plug Large — Black review
The one thing that sets it apart in Tunnel Plugs: colour — Black.
A hollow tunnel plug in body-safe silicone that reviewers found extremely easy to use — though one called it "insanely huge", so size expectations matter here.
What it is actually like
This is a hollow tunnel plug, which means it stays open once inserted — a different sensation to a solid plug, and one that takes a bit of getting used to. Reviewers who got on with it praised how straightforward it was to use, with one saying it was "perfect and easy to use" and another noting it worked very well from the start.
The silicone is firm enough to hold its shape but has enough give to make insertion manageable. At 145 grams it has some weight to it — not so heavy that you forget it is there, but enough that you always know where it is, which is most of the appeal of a plug like this.
The size caught one reviewer off guard, who called it "insanely huge". That is worth taking seriously: tunnel plugs look smaller than they are because of the hollow centre, and this one is marketed as "Large". If you are new to this style or to larger toys generally, start with something smaller and work up.
The hollow design means it sits differently to a solid plug — there is less internal pressure and more of a stretching sensation. Some people love that; others find it odd at first. The reviews suggest it is easy to get started with once you are past the size question, but the lack of detailed feedback means we cannot say much about how it behaves over a longer session.
It suits people who know they want a tunnel plug, know their size, and want something that does not ask much of them once it is in.
Who it suits
This one is for people who already know they like tunnel plugs and are comfortable with larger sizes. If you have used a solid plug in the 1.5-inch diameter range and want to try the hollow style, this is a straightforward option.
It is not for beginners. The "insanely huge" comment is a real data point, and tunnel plugs are harder to judge by eye than solid ones. If you are new to anal play or to this style, look at something smaller first — the tunnel plugs roundup includes options that ease you in more gently.
The silicone is body-safe, which means it cleans easily and lasts for years if you look after it.
Where it sits
Tunnel plugs are a small subcategory — they stay open once inserted, which is a specific thing that not everyone wants. This one sits in the middle of the best tunnel plugs by Coyscore, with a straightforward design and a body-safe material.
It is not the highest-scoring tunnel plug we track, but it is easy to use and the silicone makes it a better long-term choice than the porous alternatives. The question is whether the size works for you.
The short version
A hollow tunnel plug in body-safe silicone that reviewers found easy to use, but with a size that surprised at least one person. If you know you want a tunnel plug and you are comfortable with larger toys, this is a straightforward option that will last.
If you are new to tunnel plugs or unsure about the size, start smaller. The ease-of-use reports are encouraging, but "insanely huge" is not a comment to ignore.
The silicone is the main reason to pick this over cheaper alternatives — it cleans properly and does not degrade the way porous materials do.
Where to get it
Available now for $56.95. Ships from our warehouse in New Zealand.
Master Series Invasion Hollow Silicone Anal Tunnel Plug Large — Black is stocked in New Zealand by Coy , listed at NZ$56.95.
<WhereToBuy /> — geo-routed CTA not wired. Awaiting geoRoute prop from the edge router (spec §10).
What we based this on
This review draws on 446 aggregated reviews across 5 retailers, averaging 3.3 stars. The Coyscore is 70 ("Worth a Look"), which reflects a product that works well for some people but has clear limitations. The ease subscore is unusually high at 100, which supports the "easy to use" reports; the satisfaction subscore is lower at 58, which suggests it is not for everyone.
The numbers
Weight: 145 g (derived from supplier data)
Insertable length: not stated
Maximum diameter: not stated
Material: not stated by the supplier
Non-porous: not stated
Flared base: not stated
Taper: not stated
The material is described as silicone in the product name, but the supplier spec does not confirm it. We cannot verify porosity without that confirmation.
| Material | Not stated not published by the supplier |
|---|---|
| Non-porous | Not stated not published by the supplier — No Material Blurb to derive porosity from |
| Insertable length | Not stated not published by the supplier — Size "N/A" is not a length |
| Weight | 0.145 kg derived from supplier data |
| Maximum diameter | Not stated not published by the supplier — Not published by the supplier and absent from descriptions. Needs the tier-2 corpus or measurement. |
| Flared base | Not stated not published by the supplier — Safety-critical. Deliberately NOT inferred from subcategory — that is a category generalisation stated as a per-product fact. Needs the tier-2 corpus or a human. |
| Taper | Not stated not published by the supplier — Not published by the supplier. |
The Snug Report is published by the team behind Coy, a New Zealand retailer that stocks many of the products reviewed here. We say so on every page. Our scores come from aggregated public reviews, not from us — the method is on the methodology page and the evidence count is on every review.
Who publishes this. The Snug Report is published by the team behind Coy, a New Zealand retailer that stocks many of the products reviewed here. We say so on every page. Our scores come from aggregated public reviews, not from us — the method is on the methodology page and the evidence count is on every review.
We do not carry advertising and we do not accept payment to review or to score a product. What we do and do not do.