ماسك ثنائي الفتحة | قفل حبل قابل للتعديل بنابض | قطعتان

The metal construction feels much sturdier than the plastic ones I've used before, and the 6 mm opening works perfectly for my drawstring backpack. Just press the top, thread the cord through, and it locks tight with a satisfying click.

I've been using these cord locks on my backpack drawstrings and the spring mechanism is smooth and easy to press. They hold tight even when I'm hiking with a heavy load, and the metal feels durable enough to last.

The 6mm opening is just right for my thick drawstring bags, and the spring action is firm enough that the cord stays put even after a full day of hiking. Took me ten seconds to thread both holes and adjust the tension.