kono hasami wa yoku kireru node, kami o kiruno ni benri desu.

These scissors cut well, so they are convenient for cutting paper.

Breakdown of kono hasami wa yoku kireru node, kami o kiruno ni benri desu.

• は: topic particle
• です: to be
• を: direct object particle
• に: purpose particle

Questions & Answers about kono hasami wa yoku kireru node, kami o kiruno ni benri desu.

Why does the sentence use この はさみ instead of これ?

この must be followed by a noun, while これ stands alone.

• この はさみ = these/this scissors
• これ = this one / this

So if you want to directly name the object as scissors, you use この はさみ.

Compare:

• これは よく 切れる。 = This cuts well.
• この はさみは よく 切れる。 = These scissors cut well.

Both are possible, but この はさみ is more specific because it names the item.

Why is はさみ not marked as plural even though English says scissors?

Japanese nouns usually do not show singular vs. plural the way English nouns do.

So はさみ can mean:

• a pair of scissors
• scissors

The number is understood from context. In English, scissors is grammatically plural, but in Japanese はさみ is just a normal noun with no special plural marking here.

That means この はさみ is naturally translated as these scissors or this pair of scissors, depending on the context.

What does よく mean here?