The blades of the previous generation Fusion already fulfilled their purpose very well ... The Fusion Proglide shave even better on the first pass and with an even greater softness. Each new generation of Gillette blades progresses compared to previous, it is undeniable ... I recommend this product to anyone who already know the Gillette blades and more! A precision: even though these new blades work perfectly on a Gillette Fusion razor (previous generation), it's even better with a razor Fusion Proglide Flexball which, too, has progressed very well.