They are made from a durable, high - density military grade material for extra strength, but are thinner for quicker freeze and thaw times. (evenflofeeding.com)
The frame is made of high - grade aluminum, allowing for its light weight, but providing extra strength and stability. (tinyfry.com)
I wear the bracelet when I need extra strength, like when going through a biopsy, scan, labs... anything that I'm fearing. (health.com)