Yes, but remember that the number after the M is the heighest weight range. So M70's are 60-70kg.
Therefore, if you are 60kg or over you will require M80's
okay they do delevery to like usa right?
I don't believe they do, ProJump should only be authorised to sell within the UK or Europe.
You would be better off going to somewhere like
www.getjumpingstilts.com or
www.xphub.com if you are in the US (PoweriZer are identicle to ProJumps, same company, same factory, same parts, different label)
It will work out a hell of a lot cheaper too as it'll be about $50-$100 shipping to the US