My back is in bad shape, so I find bending to tie laces a real pain in the neck (and lumbar spine), lol!  I've been buying slip-on sneakers (like skate shoes); however, for long walks or using the treadmill, I don't find those slip-ons adequate to the task.  I've tried several different types of no-tie laces, from individual silicone laces, curly laces, etc.  None work as effectively as these lock laces.  And because it takes but a second to loosen, then tighten, the locks it makes quick work of something that used to be a painful activity.  Now I can buy a great pair of athletic shoes, replace the laces with the lock laces, and I'm good to go.  There's a video on how best to utilize the laces, but it's not difficult at all. Because of my back, I do have my husband helping me with the initial "installation" (laces must be measured, cut etc.).  I recommend these to everyone, young and old alike. In addition to making it easy to put on, and keep on, a pair of athletic shoes they're great for people who don't like to keep retying laces that come loose!