Blue Diamond Rubber Rib Anti Slip Mat, 3mm x 915mm| at Zoro
Queta Multipurpose Non-Slip Mat, Non Slip Rubber Matting, 180 x 200 cm PVC Anti-Slip Gripper Roll, Carpet Gripper Underlay for Hard Floors Rug Gripper For Wooden Floors(Milky) : Amazon.co.uk: Home & Kitchen
120x180cm Anti Slip Rug Mat Grip Gripper Multi-Purpose Non Slip Underlay Thick | DIY at B&Q