Amazon.com: addi FlexiFlips XL Knitting Needles (Set of 3) - US 10 (6.0mm)
We Tried It! - Flexi Flips Edition – Twisted
Flexiflips might be worth the hype…the tension difference between magic loop (bottom) and flexi flip needles (top) was immediately apparent on this sock ! : r/knitting
FLEX Double Pointed Needles - Denise Interchangeable Knitting and Crochet