... , green, black etc G603 granite stone step: Our steps, stairs, risers and treads are various in color and dimension either. Material ... following, but your own design is also welcomed. Steps and risers: 110~270x30~33x3cm or custom requirementRisers: 110~270x14~15x2cm or ... confirmation. We are looking forward to your inquiry on steps, risers, treads and your unique design.