It is 12mm wide x 3mm thick and is self adhesive on one side. If you want a longer length just buy more of them you will recieve the length you ordered in 1 length.
Stove flat sealing tape/glass door seal black 25mmx 3mmx1m adhesive Bkd
STOVE GLASS SEALING TAPE FIRE WOOD SELF ADHESIVE 25MM X 3MM
Stove Flat Rope Tape - Self Adhesive - 25mm x 3mm - Rope/Gasket/Seal/Pipes/Glass
Flat stove sealing tape, self-replaceable accessory for wood
Fireplace Replacement Parts Stove Sealing Cord Fiberglass Flat Gasket Tape
