Some time ago I tried the Lee Valley MW. I liked the Ren. better. The cheaper ones appear to be much softer ...probably just cut with more solvent is my guess. Mine is 200 ml (7 oz) and was $23.99, but I see the KnifeCenter has the same sized tin on sale for $19.95. 65 ml for $15.95. I think there must have been a typo on your 6.5 ML...should have been 65. It will last you a LONG time. A little bit goes a long way.