The designer's suggested colors & materials for ~7.5-inch (19cm) wrist:

Tubelet Beads - Jet Hematite, ~75 Beads

Miyuki Seed Beads 11/0 - Crystal Labrador Full, ~2 Grams

Cup Button - Jet Hematite, 1 Piece Secondary Colorway:

Tubelet Beads - Metallic Aqua, ~33 Beads

Tubelet Beads - Metallic Sea Blue, ~18 Beads

Tubelet Beads - Metallic Emerald, ~18 Beads

Miyuki Seed Beads 11/0 - Crystal Labrador Full, ~2 Grams

Cup Button -Crystal Labrador Full, 1 Piece

This PotomacBeads tutorial teaches you how to use a prismatic right angle weave to easily create the Tubelet Trio Bracelet. This is a great project for beginner beaders but can still be enjoyed by anyone looking for a fun, flexible, bracelet.
1.Using a size 10 needle and a long piece of Wildfire thread, add 3 seed beads and slide them down the thread leaving about 30cm for a tail. Bring the needle through the beads again to form a loop. Go back through the first bead again. This is the first segment of the prismatic right angle weave.
2.Watch the Tubelet Trio Bracelet video to learn how to weave this beaded bracelet together.
3.When you get to the end of the bracelet, pick up 3 seed beads and go through the back of the button. Pick up another 3 buttons and go back down the other hole of the button. Circle around everything again to strengthen the clasp. Tie off the thread, hide the knot and cut the thread.
The Tubelet Trio bracelet is a simple project for a casual yet classy bracelet. Have fun making multiple bracelets in different colors. You can find all the materials you need at PotomacBeads.