Bubble Trax Bubble top surface provides added cushioning comfort. PVC top surface is chemical resistant, extremely durable and resistant to wear. Cushion sponge base offers excellent comfort and support. UniFusion bond guaranteed for the life of the mat. Sloped beveled edges to reduce tripping hazards and allow easy access on and off the mat. RedStop non-slip backing technology holds mat in place. Available in Black, Grey, or Black w/Yellow Safety Border. Overall thickness: 1/2".