https://www.durofelt.com/products/sas1218dgy-100-12quot-wide-x-18quot-thick-dark-grey-self-adhesive-felt-strip-in-medium-density-026-gmc3-f-5
SAS1218DGY-100: 1/2" wide x 1/8" thick Dark Grey self-adhesive felt strip in medium density (0.26...
https://www.durofelt.com/products/sas1218dgy-25-12quot-wide-x-18quot-thick-dark-grey-self-adhesive-felt-strip-in-medium-density-026-gmc3-f-5
SAS1218DGY-25: 1/2" wide x 1/8" thick Dark Grey self-adhesive felt strip in medium density (0.26...