Trellis Lattice Design | Front loading machine washable, do not use detergent, do not use spin dry (Cold/Cold, Delicate Cycle, No Dryer, Hang-Lay Flat to Dry) | Approx Stair Tread Size: 8 ½ inch x 26 inch (±3% due to manufacturing) | Includes: Set of 13 Stair Treads | Color : Black | Design : Trellis Border | Protect your stairs and create traction | Stain Resistant | Fade Resistant | Indoor Use Only | In order to secure treads in place, double-sided carpet tape required (not included) | Slip resistant backing works on most hardwood, marble etc stairs | Easy to clean and wash | Low nylon pile