Spring Cord Locks Single Hole Plastic Spring Toggle Stoppers Buttons Small Round Elastic Toggle Sliders with 10m Bungee Rope - Opopark

They are designed to secure elastic cords and drawstrings, preventing them from slipping or loosening on items like clothing, backpacks, and sportswear.

They are suitable for cords and drawstrings around 2.5mm in diameter, which is a common size for many elastic applications.

Simply thread the cord through the single hole, press the spring to allow movement, slide the lock to the desired position, and release the spring to secure it.

Yes, they are made of durable plastic and are suitable for many outdoor applications like securing tarps or gear, though prolonged extreme weather exposure may affect longevity.

The product typically comes with 50 pieces of black plastic spring cord locks and approximately 10 meters (32 feet) of 2.5mm diameter elastic cord.

While primarily designed for elastic cords, they can be used on non-elastic cords to cinch them, but they might not provide as secure a hold as on elastic material.

The PP plastic is durable for regular use. The spring-loaded design is intended to provide a secure grip without being overly difficult to operate.

Ensure the cord is properly threaded through the hole and the spring mechanism is fully engaged. Check if the cord diameter is appropriate for the lock's hole size. For very slippery cords, a double knot on the end might add extra security.

Gently flex the spring mechanism a few times. Ensure no debris is obstructing the spring. If the issue persists, the lock might have a manufacturing defect.

Inspect the cord lock for any existing cracks or stress points before use. If it breaks, replace it with a new one. Consider if the application is too demanding for plastic cord locks and if a metal alternative might be more suitable.