The black rings in this bracelet are made of neoprene, a bodysafe rubber! This makes the bracelet completely stretchy. No need for a clasp, as it slides right over your hand. It’s VERY comfortable. I have a bracelet of my own in this style that I wear every day. Definitely one of my favorites. The metal used is colored aluminum, which is VERY lightweight. The bracelet weighs less than 2 US nickels.

Material: Bright aluminum and neoprene rubber
Color: black and silver
Weight: 6.2 grams/ .22 oz
Length: About 6.75 inches/17.2 cm, stretchy (fits a small to average sized lady, and rather small men as well)
Weave: Byzantine/birdcage