This 4.5″ x 5.5″ Riker Mount 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 dimension is 4.5″ x 5.5″”; depth is 3/4″. Constructed of heavy chipboard covered with black embossed paper; glass cover.