first step:
Please make sure the hand can reach the bottom of the toilet touch the screw hole (do not know to shoot fast)
(Some of the toilet too over the wall, fully enclosed) mounting holes greater than 1CM (our screw diameter is 1CM, too small to get into)
The depth of the installation hole is less than 4.5CM (our installation screw length 5.5CM, too deep do not come)!
Buy the quick release of the pro Note: Be sure to measure the diameter of the mounting hole (diameter greater than 1.5CM)!
Step 2:
Determine the shape (shape is available for 90%)
第三步：
测量马桶的长、宽、孔距（尺寸也确定99%没问题了）
