Key benefits Secure, slipresistant surface: the underside is made of selfadhesive TPU to grip smooth stair surfaces, helping the mat stay in place and providing a softer, stable feel underfoot. Easy to : each tread measures 8 inches wide by 30 inches long and comes in a 15piece set, easily cut with scissors to match corners or unusual dimensions. Broad compatibility: suitable for interior stairs surface finishes such as hardwood, laminate, marble, ceramic tile, and glass. Not recommended for stairs that are not smooth enough (for example cement stairs or unpainted wood stairs). Quick, residue installation: install in about 5 minutes. Clean and dry the stairs first, remove the rear plastic cover, place the treads on the stairs, and press down. The adhesive is designed to avoid leaving residue on stair surfaces. Specifications and features Material: selfadhesive TPU with a nonslip bottom Size per tread: 8 inches wide x 30 inches long Set: 15 pieces Suitable for interior stairs with smooth, finished surfaces Note: not suitable for stairs that are rough or unfinished (eg, cement stairs, unpainted wood) Installation and maintenance Quick installation: clean and dry the stair surface, remove the rear plastic cover, place the tread on the stair, and press firmly to secure. Adhesive design: the installation uses a special adhesive to minimize residue on stairs. Use scenarios Family homes with children or elderly residents seeking added traction and safety on interior stairs Interiors with smooth stair surfaces such as hardwood, laminate, marble, ceramic tile, or glass staircases Rentals or shared spaces where easy, lowresidue installation and removal are important Please note For results, use on smooth, finished stair surfaces. Stairs that are not smooth enough may not be suitable for these mats.