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Homepage Lifekey 3M™ HELMET PATCH
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Comfort

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Safety

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Extreme Durability

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Temperature Tolerant

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Innovative Materials

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Non-Conductive

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Temperature Tolerant

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Innovative Materials

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Non-Conductive

INFO

Affix Lifekey to your favorite helmet and convert it into a connected wearable — able to provide your personal medical data and notifications in case you're injured. These durable adhesive patches work in conjunction with the Lifekey App. The 3M™ High Performance Adhesive performs well after exposure to humidity and hot/cold cycles.

Qalo Ring Size Guide

I Have a Ring to Size

  • Yes, Measure Ring
  • No, Measure Finger

Circumference (MM) Ring Size
44.5 3
44 3.5
46.5 4
48 4.5
49 5
51 5.5
52 6
53 6.5
55 7
56 7.5
57 8
58 8.5
59 9
61 9.5
62 10
63 10.5
65 11
66 11.5
68 12
69 12.5
70 13
71 13.5
72 14
73 14.5
74 15
75 15.5
76 16

Tips + Tricks

If you have a ring to size, please measure the diameter and circumference of your ring and follow the measurements below to find your QALO size. If you are between sizes, we recommend that you take the next whole size up. (i.e. If you are a size 8.5, we recommend that you wear a size 9.)

Still Unsure?

CONTACT OUR CUSTOMER SERVICE
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