The Commercial Blender Parts by KitchenAid Commercial: Tamper, flex edge, Fits residential models KSB8280, KSB8270, KSB7068, KSB6060, K400 Blender and K150 Blender. Fits commercial models: KSBC1B0, KSBC2F1, KSBC1B2 ( KitchenAid Commercial - KSBC9FT )