Replacement part number: 5140117-99 5140125-95. Compatible with Black and Decker: BV2900, BV3100 12 Amp Vacuum. Our leaf collection bags come with additional sewing thread to contain huge amound of debris and dusts while avoiding easy crack. Made of fine cotton textile and with great craftsmanship, 20% polyester; 80% cotton, the bag delivers higher durability. leaf blower bag replacement bag meets the requirements of collecting and handling fallen leaves in the courtyard, greatly improves the use efficiency, and avoids the problem of repeatedly dumping broken leaves due to small capacity. A zipper is used on the bottom of the bag, not a plastic snap-on closure. Replacement part number: 5140117-99 5140125-95. Compatible with Black and Decker: BV2900, BV3100 12 Amp Vacuum. Our leaf collection bags come with additional sewing thread to contain huge amound of debris and dusts while avoiding easy crack. Made of fine cotton textile and with great craftsmanship, 20% polyester; 80% cotton, the bag delivers higher durability. leaf blower bag replacement bag meets the requirements of collecting and handling fallen leaves in the courtyard, greatly improves the use efficiency, and avoids the problem of repeatedly dumping broken leaves due to small capacity. A zipper is used on the bottom of the bag, not a plastic snap-on closure.