New regulator/carburetor springs for the following engines: HONDA GX340, GX390 PEZAL KIPOR Zongshen 188F - etc. Chinese clones of the HONDA GX390 engine the so-called THIN and THICK, length 135 mm / 215 mm original no. 16561-ZE3-020 / 16562-ZE3-000it is a very good quality replacementthe price is for a set of 2 springs visible in the photo