Fiskars 12-83727097J Self Healing Rotary Cutting Mat, 24x36 Inch,Grey https://www.amazon.com/dp/B000YZASYO/ref=cm_sw_r_cp_api_i_Lbr9EbJDTY8DQ
Looks like I got the last one as the alternate supplier is much higher. There are other similar options
Fiskars 12-83727097J Self Healing Rotary Cutting Mat, 24x36 Inch,Grey $29.98