$60.99 VERY STRONG 1/4 Black Foam Board UltraBoard Plus / Rigid | Etsy
Cleverbrand Reticulated Black Foam Sheet - 12 Wide X 4' Long X 3/4 Thick: 10 PPI: Amazon.com 
Black Nitrile Rubber Foam Sheet at Rs 15/meter | Nitrile Rubber Sheet | ID: 20175115088
