Singluar Feminine
este/esta estos/estas- this/these
ese/esa esos/esas-that/those
aqul/aquella aquellos/aquellas-that/those
(over there)
este, esta, and estos, estas are used to refer
to objects that are close to the speaker
aquel, aquella, aquellos, aquellas are used to speak about objects that are far away from the speaker.