Introduction: Inner Tube Rubber Bracelet Core

About: I'm a social-worker, working with 12 - 23 year-olds. I used to be a printer. In 2018 I opened a small makerspace ( in my house, where I have lasercutters, 3d-printers, Arduino's, Mindstorms and ot…

For a workshop I will give this weekend I was teaching myself how to make "survival" bracelets. The problem for me with the bracelets that I found on this site, where the clasps, buckles or whatever method they had to close the bracelet. This problem was solved by using an inner tube from a bike as the core of the bracelet. Ideally the diameter of the tube would be the size of your wrist, but we don't live in an ideal world so I had to work around that.

Step 1: You Will Need

You will need
  • wire, rope of string
  • old inner tube
  • hole puncher
  • scissors

Step 2: The Tube

If your tube is the good size for your wrist, you just cut of 1 cm (1/2 inch) of tube and your done. In my case I wasn't so lucky.
  • Cut a piece of tube long enough to go around your wrist plus 2 cm (1 inch) extra.
  • Cut it lengthwise
  • Cut of a 1 cm (1/2 inch) strip

I know 1 inch is not exactly 2 cm but doesn't come so close.

Step 3: The Connection

  • Measure the size of your wrist.
  • Punch a couple of holes in both sides of the rubber strip so it will fit around your wrist when you put the holes on top of each other (I liked 3 holes)

Look carefully where the holes will come. You want to have them in the centre of the strip and spaced evenly on both sides.

Step 4: Start With the Rope

Use two colors of rope for a nice effect. You will need about 1,5 m (5 feet) of each color.
  • Put the two ropes through the first hole, from the inside out.
  • Stick these same ends through the second hole, again from the inside out.
  • Put the ends through the loops that where created by going around.
  • Go through the last hole. Again from the inside out. 
  • Pull everything tight (let 5 cm, 2 inch, stick out)

Step 5: Stitching

The stitching goes the same as shown in many ibles on this site.
  • The UNDER line (in my case the orange) will go through the bracelet, leaving a loop on the side where it started. It needs to lay over the OVER line (in my case red) on the other side.
  • The OVER line will go over the bracelet through the loop of the UNDER line on the other side.
  • Pull everything tight and do it exactly the same only the other way around (left becomes right)
  • Repeat until finished.

Step 6: Finishing Off

When you stitched all the way around you will make one more stitch over the lose ends from the beginning.
  • Cut off the excess wire, leaving 5 cm (2 inch) to finish it off.
  • Knot het two UNDER wires together
  • Knot the two OVER wires together

Step 7: The Result

You will end up with a bracelet that looks cool and that is easy to take off and still won't fall of out of itself.