Clover's Large Point Protectors are great at protecting your knitting as well as your knitting bag. The rubber ends sit tightly on each of your circular needles, which is handy really as it stops your needles piercing your bag. They're also good at preventing your work from whizzing off your needles. Super convenient to have as part of your accessory collection.
They're available in two sizes; small covers needle sizes 2mm (US0) to 5mm (US8), with the large taking care of needle sizes 5mm (US8) to 10mm (US15).