The felt is doubled (making two layers) by attaching another layer of felt, using peel-and-stick felt or iron-on adhesive.
Position the battery about 0.5 inch from one end and trace around it.
Draw lines across the top and bottom of the circle. You will cut along these lines to make slits to hold the battery.
To cut the lines, fold the end of the felt band down so the circle is folded in half. Carefully cut each line.
Insert the battery into the slits to make sure it fits. Adjust the slits if needed. Then remove the battery.
Cut Tabs to Close the Wristband
Two tabs fit into the slots over the battery to close the circuit and hold the ends of the wristband together.
About 1/2 inch in from the other end of the wristband, draw a line about 1/2 inch long. Do the same on the other side.
You have just made tabs that fit into the slits that hold the battery.
Re-insert the battery into the slits. Curve the ends of the wristband together so the tabs overlap the slits. Slide each tab into the slit on the corresponding side -- right over the battery.
Pull the tabs tight. This is how you will close the wristband when it is done. For now, remove the battery again so you can add the circuit lines, known as traces.
