Knitting needle end stoppers are a must have in a knitters toolbox.  These  pushed  onto the end of your needles will prevent you having a heart stopping moment when you discover you stitches have fallen off, especially when doing lace work.  Great for when your knitting is unattended or travelling.

These are plastic and come in 2 sizes.  These orange ones are for your tiny sized needles up to approx 3.5mm.

The blue stoppers  also listed are for needles 3.5mm on upwards.

They are sold in a pair of 2.  When you add 1 quantity to the cart, you will get 2 stoppers.

Knitting Needle End Stoppers Small