These are German made forged pistons from Wossner,.. Wossner is a very well known name in Europe as a producer of very high quality forged pistons but is just becoming known here in the US. These Wossner Forged pistons are a great upgrade for any Toyota Starlet GT Turbo /Glanza S / GlanzaV, and are especially necessary when the engine is tuned to make more HP. This particular kit fits the 4EFTE engines found in these cars. This kit comes with four Pistons that have a low friction skirt coating, four Ring sets , 4 wrist Pins and 4 sets of wrist pin clips.