How long are the amplicons of the 16S and 18S assays?

How long are the amplicons of the 16S and 18S assays?

16S/18S PCR assays

1. The amplicon of the bacteria assay MA Bac covers the V3-V4 region of the 16S rRNA gene and is approximately 460bp long.
   
2. The amplicon of the yeast assay MA Yeasts covers the V8-V9 region of the 18S rRNA gene and is approximately 310bp long.