New, unused set of 4 pieces, 15cm square, 15mm thick

as known Treadmill Power Rack Weight Machine Piano Speaker Anti-Vibration Soundproofing Rubber Mat 15cm Square 15mm Thick - New Unused Set of 4

These are rubber mats for anti-vibration and soundproofing of exercise equipment such as treadmills, exercise bikes, weight machines, power racks, and dumbbells, as well as pianos and large speakers.
The 2mm surface and bottom layers are made of a firm EPDM rubber material, while the middle layer is made of a soft SBR rubber material, creating a 3-layer structure that absorbs shock while maintaining a firm and stable surface.
as known mats are professional-grade mats widely used in domestic sports gyms. These 15cm x 15cm x 15mm thick pads effectively protect your floor from damage.
They prevent floor dents and scratches by dispersing the weight of ultra-heavy items like pianos and large speakers, rather than concentrating it on a single point.
If you're concerned about noise even with a thin mat for your treadmill, please give these a try.
These are rubber mats for anti-vibration and soundproofing of exercise equipment such as treadmills, exercise bikes, weight machines, power racks, and dumbbells, as well as pianos and large speakers. The 2mm surface and bottom layers are made of a firm EPDM rubber material, while the middle layer is made of a soft SBR rubber material, creating a 3-layer structure that absorbs shock while maintaining a firm and stable surface. as known mats are professional-grade mats widely used in domestic sports gyms. These 15cm x 15cm x 15mm thick pads effectively protect your floor from damage. They prevent floor dents and scratches by dispersing the weight of ultra-heavy items like pianos and large speakers, rather than concentrating it on a single point. If you're concerned about noise even with a thin mat for your treadmill, please give these a try.