These individual circulars, completely interchangeable with Denise knitting or crochet sets, are ideal if you need just one size of needle tips and a one cord length. Each package contains one set of needle tips and one cord.
Here are the approximate size conversions for each needle:
4.0mm, 43cm length needle is approximately US 6, 17" length
6.0mm, 60cm length needle is approximately US 10, 24" length