Great quality thickness and great support. Material: NBR Thickness: 10 / 15mm Size: 180 * 60cm / 180 * 80cm Be careful: 1. The thickness of the product may have an error of + - 2mm. Please understand 2. There will be some peculiar smell when NBR material is just produced, and the smell will disappear one day after wiping 3. Random delivery of horizontal/vertical lines.