1.Before installation,please check the original wiper arm,choose the proper adapter.
   Do examine the steady after installtion.
2.Please clean the dust and oil stain on the windshield before installation to avoid
damaging the new product.
3.Examine the spring pressure of the wiper arm.Make sure the pressure strong enough for the new product.
4.Please clean the dust and dirt on the rubber strip termly to extend its service life.
5.Please put the blade arm up while parking to extend its service life