1. Free combination of height, easy to operate 2. The bottom has TUP soft rubber, with a certain shock absorption and noise reduction effect, to prevent the floor from scratching damage 3. Good weight-bearing, no deformation 4. Bottom thread design, non-slip and wear-resistant 5. Heightened strip design, not easy to slip 6. With drainage holes, easy to clean 7. Material: plastic, TPU 8. Use: shock absorption and noise reduction, heightening, ventilation and moisture-proof, easy to clean 9. Single size: about 7.2 x 2.6cm
