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Third Hand or Articulated Arm, Facilitates Tasks of Soldering Components with Tin. You will need to add a Plier of the Type: https://aliexpress.com/store/product/10-units-lot-029-longitud-plier-clip-for-led-product-electronic-clip/2063151_32841305646.html The end has a diameter of 4mm to allow insertion into the plier. On the other end, you must attach it to a base (preferably weighing a bit). My original idea is to use an elastic band to close the clamps, but I have added a hole if you want to use screws. As a base, you can use a small tray with coins to add some weight. In the first version, I will use a small tray bought at the Chinese corner for €1, something like this https://www.amazon.es/InterDesign-Organizador-cubertero-utensilios-transparente/dp/B0019TYZOS/ref=pd_sbs_196_5. The weight of the tin roll is expected to be enough to keep everything stable.