dimensions: 1/2-1″, 1-2″, 2-3″, and 3-4″ 
color: rich black, no stripes, glossy finish
shape: rounded, smooth edges
packaging: bag of 22 lb (10 kg)
coverage: one bag covers 1 to 1.5 sq.ft., 2″ deep
coverage: one ton (2000 lb) covers 125 sq.ft., 2″ deep