Will the Lens Cap Holder fit on my camera strap?

The holder will fit on standard camera straps, like the one that came with your DSLR.

The slits on each end of the holder are 1.75" wide (that's how wide your strap is) and .25" high (that's how thick your strap is).

As long as your camera strap isn't bigger than that and doesn't have any extra hardware on the end of it, it should fit through the holder's slits.

How do I know what size to get for my lens cap?

Take a look at the inside of your lens cap, the size will be written in there. For example, it might say 52mm or 67mm. Whatever it says is the size you'll want to select when you order your Lens Cap Holder!

So what lens cap sizes do you have exactly?

Read 'em and weep: 40.5mm, 43mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, and 82mm
When you order, just find the option with your lens size and select it from the drop down menu.

So how do you put it on your strap?

Thread the end of your camera strap through the 2 slits on the holder. That's it!

To put the lens cap on the holder, just snap your lens cap onto it the same way you'd snap it on to your lens. It holds with a secure grip, so you'll never lose your cap again. The awesomosity is unbearable.