This is the 3195th most frequent Polish word.
ręcznej
The Polish word "ręcznej" means "of hand" or "manual" (genitive or locative singular feminine form).
Here, 'ręcznej' describes the attribute of the bag being hand-held or portable.
Jestem bardzo zadowolony z mojej nowej ręcznej torby.
I am very pleased with my new hand-held bag.
In this instance, 'ręcznej' is used as part of the term 'piłka ręczna,' or 'handball,' referring to the sport.
Grałem wczoraj w piłkę ręczną z kolegami.
Yesterday, I played handball with my friends.
Here, 'ręcznej' modifies 'szlifarki' to describe the sander as being operated by hand.