Tag collars are excellent for indoor use as a simple tag holder. They feature a very low profile single ring that lays flat against the chest.
They feature some of the strongest buckles on the market today using YKK and Duraflex. I use welded metal hardware that is proven to last years without breaking. My slides (or size adjusters) are some of the most durable out there. Plain webbing items are made with duraflex plastic slides and ribbon on webbing are made with metal slides.
All items are assembled on my 1541 Industrial sewing machine with triple bonded Nylon sunguard thread that is nearly impossible to break by hand.