10 Pack - Premium Single Hole Cord Locks - Small Round Plastic Pop Toggle Bead with Spring Lock - Adjustable Slider End Stopper for Mask Lanyards Drawstring, Paracord & More by Specialist ID - Walmart.com
Black Cord Locks - Different Sizes & Kinds | Rope & Cord
Spring Cord Lock End Stopper Fastener Slider Toggles Clip - Temu
Heavy Duty Big Cord Locks: Durable Toggle Fasteners, Stoppers - usalanyards.com