You can keep it on even while you bathe as these are waterproof. Quantity advertised is for 4 bracelets. Adult Approximate Size: 202mm 12mm(8" 0.5"). You can even keep a spare one in your pocket or bag.
4 Pack Autism Dad and Mom Wristbands Medical ID Silicone Bracelets Puzzle Adult
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Israeli Emergency Bandage 4" Vacuum Sealed Medical Compression Bandage Trauma Wound Dressing, Self Adhesive Combat Tactical First Aid Kit (4 Inch, 4 Pack)
