Simply slip the level onto the spindle and get a perfect reading on your turntable platter. 
This quality accessory allows you to achieve a very accurate levelling in the centre for checking the horizontal alignment of your record player. 
Just place the spirit level on the spindle or top of the turntable and check in several places until if it?s perfectly level while adjusting the turntable?s legs (if possible) or the turntable platform. 
It is framed in a stable aluminium housing with a glass plate showing the measurement grid. 

To get the best sound from your turntable, proper levelling is essential. Perfect for maintaining stability, optimal results will che achieved if the turntable is mounted on a perfectly even surface. 
DIV?2/1000 Challenge difficulty 
what is 2/1000? just little bit different(0.003) with 5/1000 on the number, how many different on the sound ? how difficulty to set this level? 

diameter 60mm ?height 16.5mm hole 10 mm weight 110g