Top round insert area is 3 3/8″ diameter, interior of the box is 3 1/2″ diameter, overall size of box is 4 3/4″. Includes glass. Has removable back, no hardware necessary making it easy to put in your needlework. Finish is a semi-gloss wood stain, with small raised details around the edge of the lid. Interior is black velvet lined. Venice canvas not included.