You need to heat the metal, once it gets stiff...quench it it water to cool it, then continue working it. It's called annealing. You need to watch more videos before you try this.
It's a cuff bracelet bender that "Impressart" makes...you can buy it and the nylon benders at Michaels or Hobby Lobby or from their online store. Hobby Lobby usually has an coupon code for 40% off one item which makes it more affordable. www.impressart.com/sc910-bracelet-bending-bar.html
For "therapy," the copper wide surface area type bracelet must be overlapping with out touching, with a type of closure to hold its position as insulated, in a SPIRAL. The original health benefits came from science research a long time ago, which you probably never studied. 98% of users have it wrong. The vibrational energy in the air has frequencies, many from cosmic radiation. The cellular living tissue within the spiral gets absorbed energy at a low amplification. (Antenna) This works on people, animals and plants. I used this many years ago on my old dog with arthritis. Twice it worked.( Animals and plants don't have "BIAS"- Gee I think I feel better.) See - study the data published about the work of George Lakhovski and the booklet "The Waves That Heal" Cancer eliminated in potted plants, and use of the electrically active type, or passive type copper spirals. So now you know........