OCTOBIGTREE Timing Belt GT2-6mm 5M, Upgrade Non-Slip Version Timing Pulley Belt Rubber Belt Power Grip GT2 6mm Belt Opening Version with Non-Slip Cloth for 3D Printer https://www.amazon.com/dp/B08D8YVVRP/ref=cm_sw_r_apan_glt_fabc_85QXZ0RK8J8PEHPS6XS3?_encoding=UTF8&psc=1

This works great, just cut it to size and use zip ties pulled really tight instead of those metal grommets the originals used. No issues yet and you'll have a lot of spare length.