Heavy duty steel construction. Durable full length piano style hinge, strong side handles and durable soft grip lid handle for easy carrying. Vented nylon seaming plate mounted under tray acts as seaming weight. Tray provides extra storage for staple and nail boxes. 3 hardened steel hasps provide secure closure and accept padlocks for additional security. 24"w x 9-3/4"h x 8-3/4"d.