Double Sting Snake curve dog tag pendant in silver meaning Action Begets Action. The Double Sting Snake Curve dog tag necklace has two dynamic tribal tattoo stinger curves stamped (carved) into the pendant. These curves connect to form a larger symmetrical serpent snake curve. The dog tag pendant is made of silver over a pewter core with an invisible hypoallergenic coating to protect the finish. Approximate size of the dog tag is 1 5/8 by 1 inches; the loop, which moves freely from left to right, extends the length by 1/4 inch.