Nite Ize’s MicroLink Pet Tag Carabiner features a miniature stainless steel body with a unique design that allows for effortless tag attachment and security. Measuring at just over 1 inch tall and 0.5 inch wide, this micro carabiner holds virtually any ID tag and clips onto most D-rings on collars and harnesses. Its innovative design features a narrow opening and unique gate that prevent the possibility of tags slipping off during playtime and adventures.