Features. ATA 300 Style. 9 mm. laminated plywood. Spring action handles. Industrial strength latches and rubber feet. Stackable ball corners. Dual anchor rivets. Durable wheels. External Dimension - 22-1/2 W x 8 D x 37 (L) in.. Internal Dimension (Open Lid) - 20-1/2 W x 4-1/2 D x 34-3/8 in. (L). Item Weight - 38 lbs.