Steel Rainbow plug: the iridescent jewel that changes colour
An aluminium plug with rainbow reflections, topped with a matching crystal and sold in its own metal tin. Pretty as a jewel, but how does it really behave?
The jewelled plug is the sex toy that owns its accessory side: a polished teardrop-shaped metal body, a slim stem, and a base set with a crystal. The Steel Rainbow adds an iridescent finish over all the metal: purple, blue, green or gold depending on the angle and the light. No two have exactly the same reflections.
Why metal?
Two good reasons:
- It isn’t porous. No bacteria can settle in it, and it cleans perfectly.
- It works with every lubricant, including silicone-based ones, which last longer for anal play.
This one is aluminium, not steel. You notice the difference straight away: it’s light. You gain comfort and discretion, and you lose the weighted feeling that gives steel plugs their charm.
The flip side: metal doesn’t bend. Where a silicone plug forgives, this one imposes its diameter. Which is why size matters so much.
First impressions
It comes in a small round metal tin that doubles as storage: a good point. The object is beautiful, truly. The polish is perfect, without the slightest rough spot or mould line (always run a finger over every part to check: it’s the number one criterion for a metal plug). The crystal is firmly set.
It’s cold out of the tin. A minute in your hands or under warm water sorts that out, and you can make a game of it: warm or cool water before putting it in place gives a completely different sensation. Test the temperature on the inside of your wrist first.
In use
With time, relaxation and plenty of lube, inserting the size S goes smoothly: the teardrop shape does the work, and the slim stem then lets the muscle close comfortably around it.
Once in place, it’s almost forgotten, thanks to its lightness. Worn during other play, it adds a discreet but very real feeling of presence.
The round, rigid base, however, reminds you it’s there when you sit down. For longer wear, the T-shaped bases of silicone plugs are more comfortable.
The non-negotiable rules
- A flared base, always. That’s the case here, and it’s what makes the toy safe.
- Never force it: if it won’t go, breathe, add more lube, or stop.
- No numbing lubricant: pain is information.
- Clean before and after, and never go from anal to vaginal without washing.
It’s all covered in the safe practices guide.
Care
Top of the class: hot water, soap, done. Dry it well and keep it in its tin to protect the iridescent finish from scratches.
My verdict
Four grapes for a simple, body-safe and pretty object. I’m keeping the fifth for a model with a more ergonomic base.
Pros
- Non-porous metal: impeccable hygiene
- Light: aluminium is quickly forgotten
- Compatible with every lubricant
- Can be warmed or cooled for variety
- A genuinely lovely iridescent finish, and a nice storage tin
Cons
- Cold at first touch
- No give at all: the size has to be right
- Round base is uncomfortable when sitting for long
- Less of a 'presence' than a heavier steel plug
Perfect if…
- You want a plug that's easy to care for and nice to look at
- You prefer a light plug
Skip it if…
- You're a complete beginner: start with soft silicone
- You want the weighted feel of a heavy plug
The verdict
A beautiful plug, body-safe and easy to live with, provided you choose the right size and take your time.
4/5
Comments 6

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Robin
Le conseil de passer le doigt partout pour chercher les aspérités devrait être écrit sur toutes les boîtes. J'en ai renvoyé un pour cette raison.
Lou
Article très rassurant pour quelqu’un qui débute. Je vais suivre ton conseil et commencer par du silicone.
RaisinGraphiteChambreSecrete
Très bon plan. Tu y reviendras quand tu connaîtras ta taille !
Ambre
Le coup de l'eau chaude avant utilisation est un vrai plaisir. Je ne pensais pas que ça changerait autant la sensation.
Ludo
Ta remarque sur la base évasée m'a fait vérifier la mienne. Elle était trop étroite pour mon usage, je l'ai remplacée. Merci.
RaisinGraphiteChambreSecrete
Très bon réflexe. La base est la première chose à vérifier sur un plug, avant même la taille.