https://www.ebay.com/sch/i.html?_nkw=3M+3M+Ab5050+Circle+0+938+250+Emi+Absorber+Black+0+938+Circle+Pk250+G5731190&_sacat=0&_dmd=2

3M 3M Ab5050 Circle-0.938-250 Emi Absorber, Black,0.938' Circle, Pk250 G5731190

Regular price
$288.00
Sale price
$202.00

EMI Absorber, Black, 0.938 In. Circle, PK250, Package Quantity 250, Tapecase product manufactured from 3M material