LupinePet Basics 1" Red 12-20" Adjustable Collar for Medium and Larger Dogs

Has anyone experienced your dog's neck getting rashy, irritated, or hair loss from this collar?

The color black looks blue does anyone know what color it really is?

What color doesn't bleed?

If my dog has chewed the collar, to an unusable state, where does the guarantee (even if chewed) come into play??