These ramps are ideal for interior and exterior doors and transitions, but is also safe for use in roll-in showers, wetrooms and any other application requiring vertical modification from 1/2" to 4". They are an immediate and inexpensive solution for vertical barrier removal and can be installed quickly and easily on any surface such as concrete, asphalt, wood, tile and marble, using suitable adhesives. The rubber ramps from Aidapt come with a 10 year guarantee ensuring durable and maintenance-free use. This environmentally sustainable product is produced from 100% recycled tyres and has been designed and tested for maximum slip resistance and generous load limitations. Ideal for interior and exterior doors. 10 Year Guarantee. Colour Black. Material 100% recycled rubber.