dimensions 1/2-1″, 1-2″, 2-3″, and 3-4″
color black, no stripes, polished
shape varied shapes with soft edges, mostly round
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