Apparently its their softest, least cut pad. I want it for applying Collinite 476S double coat. It works very well doing this, but I was surprised it felt slighly agressive to the touch when say lightly brushed against the inside of your wrist, weirdly loaded with wax if pressed a bit more the slight abraisive feel dissapears ... as opposed to the ultra soft 3M Ultrafina Blue pad (this feels like a Cashmere jumper). Mine has all the right product codes on the back, but wondered if it was abraisive, re using it once every 2 months to top up the Collinite. I recollect touching their 100mm version ( Rupes say they both use the same foam) and if memory serves me well that smaller one felt very soft. Just concerned they had a bad batch. I am interested to know what makes one foam pad more agressive than another?, other than it being firmer.