Knitter's Pride Nova Cubics Interchangeable 4.5-inch (11.5cm) Long Tip Knitting Needles; Size US 7 (4.50mm) 310362 Set of 2 Nova Cubics Interchangeable Needle Tips The best of both worlds, the strength and flawless finish of brass and the perfect cuboids shape Needle size is measured diagonally, fits into a standard needle sizer, just like round needles. Easy to connect cable, with smooth join to allow for snag-free gliding of stitches