It looks small, <1mm I thought it would seal having watched all the videos.
To start with I though it was raining but then my brain worked out this was unlikely given the clear blue sky.
It seems to hold up to 40psi but when I put 100 back in at fails again.
My only worry with the plugs is if I push it through at 90 degree to trye and the hole is say 45 degree to the tyre will i just be stabbing holes in an expensive tyre?
Really like the tyres (pro one)