Pick out the most effective pair of words from the given pair of words to make the sentences meaning fully complete.
Precautions while using Garden Tools
Steel tine rakes
Have flat tines. The tines on a good steel lawn rake are made of spring steel, and they have the ability to snap back into position even when they are severely bent during use. When they remain bent, they can be straightened with the help of a pair of pliers. However, due to weakening,
there is a strong likelihood that the straightened point may bend again. Because steel rakes have the potential to rust, they should be coated with oil before a long period of storage.