We are excited to bring you this great collection of bangles that are made from acrylic tubular beads. So what that means is they are lightweight, and they are water proof. They are strung on elastic so they will fit just about any wrist size as well.They look great worn as a single or stacked with different colors. Match them to you bathing suit for a really fun look. Wear them out at night; match them to your outfits...the more the merrier.