The standard stair tread is a rubber, slip-resistant floor covering that is intended to increase safety conditions in stairwells. The standard tread comes in two sizes — — 1.21 m (4 ft) and 1.82 (6 ft).

The luminous stair tread is a rubber, slip-resistant floor covering that is intended to increase safety conditions and visibility in stairwells. The luminous tread comes in two sizes — 1.21 m (4 ft) and 1.82 (6 ft).