The measurements are listed in inches and feature both the flap open and down for the appropriate size. With the FLAP DOWN the measurements are 9 (1/8)" × 5 (1/8)". With the FLAP OPEN the measurements are 9 (1/8" x 10" The dustbag is small in size it looks like it can anything possibly the same size or smaller of the dustbag. The fabric and/or material of the dustbag appears to be cotton as it is soft to touch. All items ARE PRELOVED & PREOWNED! Based on the condition of the item it will be considered a boutique item.