13 Ago 80PCS Torsion Spring Assortment Kit, 20 Sizes 60/90/120/180 Degree Small Torsion
【ROTATIONAL FORCE ONLY – NOT A GENERAL SPRING KIT】 Unlike extension or compression springs, our torsion springs provide torque for parts that twist (door handles, 3D printer arms, hinges). Perfect for fixing one or two devices....