Montessori Exercises of Practical Life Dust Cloths are made of a soft flannel with an embroidered center design. 

Largest available for sale

Set of 12 cloths - 11 inches to a side (28 cm) - can be paired with with the 7 inch square wood tray provided in the linked products below. 

Preliminary activities include folding for putting away and folding for dusting, include the "poof" at the end. Later activities in the EPL album include dusting a table and more.