... stone stairs advantages: 1). Factory direct, Quarry owner 2). Ten years experience. 3). Good packing Stone Step ... black, yellow, green, red, brown and etc.; 2.Standard Size: Step,100-150x33cm, Riser,100-150x17cm, other ... : +/-1mm, +/-1.5cm or +/-2mm, The quality requirements must be comfirmed by customer. Welcome to inquiry ... , monument, etc Granite step stone stairs with high quality and low price