Questions & Answers about Te oprawki są lekkie.
Te means these.
It is the plural form of the demonstrative ten / ta / to (this). In this sentence, it agrees with oprawki, which is plural.
So:
- ta oprawka = this frame
- te oprawki = these frames
Because oprawki is plural.
The singular noun is oprawka.
Its plural form is oprawki.
So:
- ta oprawka = this frame
- te oprawki = these frames
In Polish, words that go together have to match in number, so plural te goes with plural oprawki.