Marble pebbles.
Colors: white, yellow, black and pink. 
Sizes: 4″ – 2″ ;  2″ – 1 1/2” ; 1 1/2” – 1″ ; 1″ –  3/4″ ;  3/4″ – 1/2″
Sold in: 2 kg (only small size), 10 kg, 20 kg and by ton.