<p>CONTAINER FOR RETICLE A container includes a base for supporting a flat object, a cover for covering the base and at least one locking unit for locking the cover to the base. The base includes at least one recess defined therein. The cover includes at least one aperture defined therein. The locking unit includes a latch and at least one fastener. The latch is disposed in the cover and can be inserted in the recess so that the cover is locked to the base. The fastener is driven in the latch through the aperture. Thus, the latch is pivotally connected to the cover. Moreover, the fastener can easily be disconnected from the latch with a tool from the exterior of the cover as shown in Fig. 2.</p>