100% natural rubber effective anti-fatigue bubblemats ideal for manufacturing production areas where employees are standing in static positions. The raised bubbled surface helps stimulate blood circulation. Provides excellent resistance to oils and chemicals. Available as complete mats or interlocking sections for longer runs. Product Height: 14mm. Operating Temperature: -30°C to +50°. Resistant to Chemicals: Resistant to water and most mild acids. Product Performance: 30 BPN, According to ASTM E304