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A pebble is a clast of rock with a particle size of 4–64 mm (0.16–2.52 in) based on the Udden-Wentworth scale of sedimentology. Pebbles are generally considered larger than granules and smaller than cobbles.
Pebbles is the plural form of the word "pebble".
Biography source: Wikipedia
Yup, that suhold defo do the trick!
— Pebbles