Non-electric bidet leaves you feeling much cleaner than conventional paper or wet wipes. Safer rear and feminine cleaning. Convenient for pregnant women No need to bend for wiping, simply twist the knob and enjoy a soft rinse. More hygienic than paper wiping Makes cleaning during menstruation easier and ideal for female. Allows seniors to easily operate Simple knob design allows seniors to easily operate without instructions. Read more No more paper Bidet will save you thousands of dollars on wasteful toilet paper. What kind of toilet can install this product? Hole distance The hole distance of the toilet cover can be installed between 5.4-7.8 in. (Length and width do not need to be measured) Read more