To all of you who want to try these, learn 1 foot grinds first, these grinds take alot of balance.
And to the people who think I'm a rollerblader, I'm not I rollerblader, I fruitbooted for 1 week 2 years ago. THESE ARE SKI GRINDS, these are 100% new, not done on rollerblades ever, grinds...