✅ Brand new set of 4 authentic rubber mats, 50cm square and 20mm thick. These are not the usual black mats with white chips, but stylish wood cork color, which doesn't feel oppressive even when laid on flooring. ✅ These professional-grade training mats are perfect for home training and free weight areas in gyms. They are actually used on the floors of free weight areas in sports gyms in Japan, and have high-weight specifications. ✅ The 2mm surface layer of EPDM rubber is hard and provides excellent stability. High-weight barbell squats, etc., can be performed stably. The 18mm lower layer uses SBR rubber, providing excellent soundproofing and shock absorption. It protects the floor from damage. Surface hardness is approximately 65, and bottom hardness is approximately 45. ✅ The EPDM material sheet on the mat surface is smooth and does not absorb water, so spilled sweat can be wiped off quickly with a cloth.