... , sandstone 2.Color: grey, red, yellow, green, black etc Our steps, stairs, risers and treads are various in color and dimension ... standard as following, but your own design is also welcomed.Steps and risers: 110~270x30~33x3cm or custom requirementRisers: 110~270x14 ... order confirmation.We are looking forward to your inquiry on steps, risers, treads and your unique design. stone stairs ...