Clover Point Protectors and Stopper are used when you are using double pointed knitting needles as single pointed knitting needles. Small and light for comfortable knitting. The cap color tells you which side of the knitted fabric you are working on. Or use as point protectors to keep your stitch
Prevent Mistakes with Knitting Needle Point Protectors - Studio Knit
Accessories
Clover Point Protector and Stopper for Needles Size US0-US10.5
Point Protectors (Small) – Clover Needlecraft, Inc.
Random Color Knitting Needles Point Protectors Big Small - Temu
Clover Point Protectors and Stopper for Knitting Needles size 2.0
Just Quilting Sundries
Knit + Crochet Tools – Brooklyn Craft Company
Prym Point Protectors for Knitting Needles 3.00-3.50mm Grey Cap
Clover Point Protectors – Knit-O-Matic