K&F Concept products have impressed me for some time, and this wrist strap is superbly done from the professional, classy packaging, to the strap itself.This wrist strap is designed to be used with cameras, but it can be used with anything that accepts the lanyard loop.This strap is in two parts, and connected using a plastic buckle that has a safety lock on it to prevent accidental release of the buckle.The strap has a variable adjustment slider, which I find to be quite intuitive and allows you to remove your hand from the wrist strap when you want to, while keeping the strap secure when you need it to be.I'm not sure why K&F has put a lot of effort into letting you know that there's a wear indicator in the loop part that attaches to your camera. I've used similar wrist straps for at least 20 years and have never had it fail at the loop. It's nice that you get a wear indicator, but I'm also slightly concerned that K&F isn't confident that this strap will be durable enough.At the time of this review, this wrist strap is $39.99 less a $10 coupon. The price after the coupon is reasonable, but $40 is too expensive.