Demon Slayer Pair: Demon Slayer Ring + Rengoku Ring
Demon Slayer Pair: Demon Slayer Ring + Rengoku Ring
Not sure about your size? 30-Day size guarantee with every purchase.
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LUXURY PACKAGING
LIFETIME WARRANTY
HYPOALLERGENIC METALS
Two Demon Slayer-inspired rings as one set: the Demon Slayer ring and the Kyojuro Rengoku ring. Both are laser-engraved with the design, and the set is priced below buying them separately.
Crafted with precision, these rings feature cutting-edge engraving techniques, ensuring that the design remains intact and untarnished.
Lifetime Warranty
Materials
Tungsten Exterior and Base
With an extremely high strength-to-weight ratio, hypoallergenic properties, and excellent corrosion resistance, Tungsten is the perfect metal for your everyday ring. It ranks a solid 6 on the Mohs Hardness scale (gold has a rating of 3), meaning that it can withstand a ton of force.
Anodized Aluminum Inlay
The anodized aluminum inlay allows us to impart that brilliant blue that symbolizes Tanjiro's water technique. Also, anodized aluminum has hypoallergenic properties which makes it a perfect place for where your skin makes contact with the metal.
The sleek blue inlay with matte black Tungsten is almost as sleek as Tanjiro's fight scenes.
Not sure which metal is right for you? Read our guide: Tungsten vs titanium rings - which is right for you?
Tungsten Carbide
Experience unparalleled strength and luxury with our Tungsten Carbide Collection.
Tungsten is 3 times harder than titanium and has a 9 on the Mohs scale of hardness (only surpassed by diamonds at 10), creating a metal so resilient that it's virtually impervious to scratches.
Tungsten maintains its luster indefinitely, promising a radiant and timeless appearance. The hypoallergenic properties of tungsten make it an ideal choice for those with sensitive skin and its heavy weight results in a premium feel unparalleled by any other metal. Tungsten carbide stands as the epitome of luxury and durability.
Shipping Times
| Location | Standard Tracked Shipping |
|---|---|
| United States | 1-7 Business Days |
| Canada | 6-10 Business Days |
| Europe | 8-15 Business Days |
| Italy | 8-15 Business Days |
| France | 8-15 Business Days |
| Australia | 8-15 Business Days |
| New Zealand | 8-15 Business Days |
| All Other Countries | 8-15 Business Days |
*This does not include our 1-2 business day processing time.
Ring Size Chart
| RING SIZE (US) | RING SIZE (UK/AUS) | INTERNAL DIAMETER (MM) | CIRCUMFERENCE (MM) |
|---|---|---|---|
| 6 | L | 16.5 | 51.8 |
| 7 | N | 17.3 | 54.3 |
| 8 | P | 18.1 | 57 |
| 9 | R | 19 | 59.5 |
| 10 | T | 19.8 | 62.2 |
| 10.5 | U | 20.2 | 63.5 |
| 11 | V | 20.6 | 64.7 |
| 12 | X | 21.4 | 67.2 |
| 13 | Z | 22.2 | 69.7 |
| 14 | Z | 23 | 72.3 |
Learn how to measure your ring size here.
Honest answers
What are MugenSense rings made of?
Our rings are tungsten carbide or titanium - both nickel-free and hypoallergenic. Tungsten is near scratch-proof with a premium heft; titanium is about 45% lighter and the safest choice for very sensitive skin.
Do your rings come with a warranty?
Yes. Every MugenSense ring carries a lifetime warranty against structural breakage under normal wear. Scratches, cosmetic wear and damage from misuse or modification are not covered.
What is your return and exchange policy?
Returns are accepted within 30 days of delivery; items can be opened but must be in original condition, return postage is on you, and an $8 restocking fee applies. Exchanges within 30 days carry no restocking fee.
All questions · Contact us (we answer within 1 business day)



