Nite Ize KnotBone LaceLock Can be configured to tighten and secure your laces or can be used to quickly cinch your laces without locking - perfect for slipping your boots on to run to the mailbox or other quick tasks without having to tie your laces. Adjust your laces neatly to the perfect fit, and keep them that way all day long with our ingenious, lightweight KnotBone LaceLock. Packaged with two KnotBone LaceLocks and two Lace Caps. Works with almost every shoe or boot lace on the market. Box Dimensions: 1"H x 3"W x 6"L. Weight: 0.1lbs.