ECR4Kids Kraft Edgers with Rotating Hardwood Rack, Decorative Scissors, Assorted, 18-Piece

I see lots of complaints about these type of craft scissors, are they well-made and cut cleanly?

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Where can I purchase the holder without scissors included? I already own 20 craft scissors and I want to buy a rotating caddy to hold them.

Are there 18 or 24 scissors that comes in the set? Some of the reviews say 24 but the description says 18..