dB Matting 5mm Rubber Mat For Sound Reduction on under floors – Sound Insulation
5mm Rubber Roll Matting is 5MM Rubber Flooring by American Floor Mats
DIAMEX STD Matting Black 1500mm Wide x 5mm
Amazon.com: IncStores 5mm Thick Strong Rubber Flooring Roll | Flexible Recycled Rubber Roll Flooring for a Stronger and Safer Basement, Home Gym, Shed, or Trailer | Black, 4' x 15' : Tools
Ribbed 5mm Rubber Matting 1m x 1m - Ray Grahams DIY Store