This pliers uses a box joint structure, no lubricating oil The double spring structure makes this pliers more blue PVC handle, comfortable to wear It is very suitable for flattening and shaping jewelry wires, flat wires are for strong and keep their shape better you have any questions, please us Wide ranges of uses: general-purpose wire tools, very suitable for straightening, fixing and bending wires jewelry making tongs: an indispensable tool for jewelry makers and designers, very suitable for jewelry making, beading, and cutting, Manufacturer: SHYYOULQE