This Riker Mount 6.25″ x 8.25″ is an effective and economical means of displaying and mounting biological specimens. Insect pins are not used in these mounts, as the white polyester padding holds specimens against the glass top. Outer dimensions are 6.25″ x 8.25″. Depth is 3/4″. Constructed of heavy chipboard covered with black embossed paper, polyester padding, and glass front.