Narrow opening + gate design prevent tag loss Stainless steel construction Secure stainless steel wire gate closure Measuring at just over 1 inch tall and 1/2 inch wide, this miniature solution allows for effortless tag attachment and security, providing the ease-of-use and peace-of-mind you deserve. Simply clip any ID tag, rabies tag, and registration tag onto MicroLink Pet, attach onto a collar or harness D-ring, and it is instantly secured. The secret to its security is hidden in its unique design. The MicroLink Pet body features a narrow opening and novel gate design, preventing the possibility of tags slipping off mid-adventure. And with its strong stainless steel body, MicroLink Pet will keep your furry friend's tags safe with every step for years to come.