Excellent quality polyoxymethylene plastic, smooth finish. Strong grip on your cord .Perfect for outdoor use, camping, coats, rucksacks, and shoelaces etc..

How they work:

They come "open" . Simply place the end of your cord into the open cord lock end and fold the lock back onto itself. Small teeth within the lock hold the cord in place and clips keep the lock shut. 

 Breaking strength of the product can be varied with respect to individual applications. All details and measurements are offered as reference only and are not to be used as guaranteed performance figures. All items should be tested in their specific application.