stump height वाक्य

It's difficult to play bowlers who are six feet six, six feet eight, banging it in the middle of the pitch not knowing if it's coming stump height or chin height,"
E . W . Swanton thought that over use of the heavy roller on the soft ground had created a ridge at the Vulture Street end, producing uneven bounce, but Frank Tyson noted that only Lillee and Thomson were able to get the ball to rise above stump height and that it only became unpredictable on the last day.