This appears to be a 2-inch wide, 30-meter long canvas delivery hose or similar flat discharge pipe.
Wiltech digital
+1
Application: These pipes are commonly used for water transfer in irrigation, construction, or fire fighting due to their ability to lay flat when not in use.
Material: They are typically constructed from high-strength polyester or similar woven fabrics for durability under pressure.
Alternative Identification: Some similar rolls, depending on the exact material texture, could be fiberglass mesh tape used for drywall repair.