Royal Mail Tracked 48 (usually 2–3 working days) · next day available · delivery options at checkout
Colour · botthms Double Blue Silicone Ring
Wrong size? Swapping is quick and easy. Silicone fits snug: between sizes, go down. · size guide
Royal Mail Tracked 48
Easy size swaps
30-day returns
Details
A two-tone silicone ring for men, black on the outside with a deep royal-blue inner face. The blue shows along the edges of the band as you move your hand.
Black with a deep blue lining
It looks like a black silicone wedding ring at first glance, with the blue lining adding a hint of colour that suits navy suits, denim and blue team kit. This is a single ring, not a set. Made from medical-grade silicone with no metal, it is non-conductive and designed to stretch and tear away under a hard pull. At about 3 g, it is light enough that most people soon forget it is there.
Men’s band in UK sizes 7–14
Medical-grade silicone: no metal, nickel-free, non-conductive, about 3 g
Arrives in a ring bag inside a pouch
Quick, easy size swaps within 30 days; Royal Mail Tracked 48, same-day dispatch before 3pm Mon–Fri
Order before 3pm Monday–Friday and it ships the same day from our UK warehouse. Royal Mail Tracked 48 (usually 2–3 working days) or next day; delivery options and costs are shown at checkout before you pay. 30-day returns on unworn rings. Quick, easy size swaps. Full terms on the Returns page.
Faulty rings
If a ring is faulty, email us — your rights under the Consumer Rights Act 2015 apply.
Easy size swaps30-day returnsRoyal Mail Tracked 48
Same band, same sizes, same easy size swaps on every set.
Why people switch
The ring you never have to take off.
Medical-grade silicone that flexes with your hand, is designed to tear away under a hard pull, and weighs almost nothing. Your metal band stays safe at home; this one goes everywhere.
N°01Non-conductive and heat-safe: wear it on site, in the kitchen, on the ward.
N°02Designed to stretch and tear away under a hard pull, which reduces the risk of ring injuries compared with metal.
Weights from our product specification; metal weights are typical ranges for plain bands. A silicone ring is designed to tear under load. It is not protective equipment and does not replace your site, trust or gym rules.
Ring avulsion is rare but serious. A silicone band is designed to stretch and tear away under a hard pull, which reduces the risk of ring injuries compared with metal.
No rings
NHS and HSE guidance: jewellery below the elbow is removed for clinical hand hygiene and around moving machinery.
NHS Infection Prevention and Control: bare below the elbows; HSE PUWER guidance on entanglement.
General safety information, not medical advice.
Find your size
Three ways to get it right first time.
You can't try a ring on through a screen, so we made sizing simple. Pick the method you can do right now — and if it's wrong, swapping it is quick and easy.
N°01 Measure a ring you already wear
Take a ring that fits the finger you'll wear this one on.
Measure the inside diameter in millimetres with a ruler.
Match it in the chart. Between sizes? Go down: silicone stretches and should fit snug.
N°02 String and ruler
Wrap a thin strip of paper or string around the base of your finger, over the knuckle if it's larger.
Mark where it overlaps and measure the length in mm.
Divide by 3.14 for the diameter, then match it in the chart.
N°03 Your existing ring size
If you know your UK letter size, find it in the middle column and order the botthms size beside it. If you know a US number, it matches the first column. Between sizes? Go down: silicone fits snug.
Silicone fits snug. Between two sizes? Go down. Wrong size? Quick, easy swaps within 30 days.
botthms size
UK letter
Inside diameter
4
G–H
14.9 mm
5
J–L
15.7 mm
6
M–N
16.5 mm
7
O–P
17.3 mm
8
P½–Q½
18.2 mm
9
R–S
18.95 mm
10
T–U
19.8 mm
11
V–W
20.6 mm
12
X–Y
21.4 mm
13
Z
22.2 mm
14
Z+2 and larger
23.0 mm
Men's rings: sizes 7–14. Women's rings: 5–10 (Active), 4–10 (Flow). Unsure? Ask us before you order.
Questions
Before you buy.
Will it fit like my metal ring?
Silicone fits a touch snugger than metal because it grips. Match your inside diameter on the size guide and, if you're between two sizes, go down.
What if the size is wrong?
30-day returns on unworn rings. Quick, easy size swaps. Start it from the Returns page; we email a Royal Mail label.
When will it arrive?
Order before 3pm Mon–Fri and it ships today from our UK warehouse. Royal Mail Tracked 48 usually lands in 2–3 working days, and next day is available at checkout.
Can I wear it in the gym, at work, in water?
Yes. Non-conductive, heat-safe for everyday work, waterproof and chlorine-proof. It is designed to tear away under a hard pull.
Nickel allergy?
No metal, so no reaction. Medical-grade silicone is hypoallergenic.
How long does it last?
Silicone is a soft material that eventually wears, so treat it as a ring you replace rather than one you keep for life. If a ring is faulty, email us — your rights under the Consumer Rights Act 2015 apply.
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