Made from 25mm-wide double-layer double-stitched nylon webbing. They will never break. Guaranteed.
As well as strong construction these collars feature a heavy duty two-bar nickel-plated buckle.
A unique feature is placement of the clip-on ring before the buckle rather than after it. This centralises the pull onto the collar and the animals neck.
Also the clip-on ring is a substantial 32mm diameter 5mm section making clip-on easy even in the dark.