More Info in Amazon.co.uk : http://www.amazon.co.uk/gp/product/B00LSXV7QE?tag=jardinsmerv0f-21
Non Slip Underlay Fleece - Extra Grip For Mats And Rugs on Carpets - 170 x 240cm
Holds mats in place without glue and without damaging the mat or carpet
Provides anti-slip safety helping to reduce the possibility of tripping or slipping on wrinkled mats
Reduces the friction caused by mats on carpets helping to extend the life of the carpet
Makes vacuuming easier keeps mats in place
Please note that different carpets can alter the effectiveness of the fleece