https://www.ubuy.co.in/product/THHZ3BP9U-tire-traction-mat-traction-boards-recovery-track-portable-emergency-devices-tire-traction-mats-for-pickups-snow-ice-mud-and-sand-used-to-cars?UTM=LTD
Tire Traction Mat, Traction Boards Recovery Track India | Ubuy
Shop Tire Traction Mat, Traction Boards Recovery Track Portable Emergency Devices Tire Traction Mats for Pickups Snow, Ice, Mud, and Sand Used to Cars, online...
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https://www.webpictureframes.com/catalog3/142/conservation-8ply-mat-samples.html
Mat Boards | Picture Mat Samples Crescent Select Acid Free 8ply
They are 8ply boards which make them about 3/16 thick. The boards core is the same color as the surface.
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https://www.jerrysretailstores.com/viewpoint-4-ply-pre-cut-mat-boards/
Viewpoint 4-Ply Pre Cut Mat Boards
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