Fits 42 in. John Deere lawn tractor models 102, 115, 125, 135, LA100, LA110 and LA120 Xtreme blades have 60% more cutting area and let you back up to 50% more grass than standard blades Lasts longer in sandy conditions than standard blades Replaces OE # GX22151 Contains one set of 2 blades Star center hole