Scissor Joint

Originally there were two half-spherical plastic parts that make two scissors blades tied to each other, but they were missing somehow. As a result, two blades are very loose and dangerous when using the scissor to cut something. As a result. I redesigned two plastic parts at the joint to fix this problem. My redesign part is consisted of two cylindrical parts. The smaller cylinder can fit in the hole of the scissor perfectly and its length is equal to half of the depth of the hole. After placin