Gollum is a fictional monstrous character from J. R. R. Tolkien's Middle-earth legendarium. He was introduced in the 1937 fantasy novel The Hobbit, and became important in its sequel, The Lord of the Rings. Gollum was a Stoor Hobbit of the River-folk who lived near the Gladden Fields. In The Lord of the Rings it is stated that he was originally known as Sméagol, he was corrupted by the One Ring and later named Gollum after his habit of making "a horrible swallowing noise in his throat".
Size - 18 X 22 mm / 0.71 X 0.87 inches
Weight - 18 g / 0.63 Oz
Hole - 6 mm / 0.24 inches