This high-density self-adhesive draught excluder is a simple, effective sealing solution for eliminating light leaks, air gaps, and draughts in grow tents, grow rooms, and greenhouses. The self-adhesive backing makes it quick and easy to apply to tent zips, door frames, ducting ports, and any gap where air or light may escape. Key Features High-density foam construction for a firm, compressible seal Self-adhesive backing for fast, tool-free installation Seals air gaps to help maintain negative pressure in grow rooms Reduces light leaks around tent zips and door frames Easy to cut to length for a precise fit Ideal For Sealing grow tent zips, door frames, ducting entry points, and any gap where air or light leakage could compromise your growing environment. A low-cost upgrade that makes a noticeable difference to environmental control.