Specimen blocks are safely stored in Blocklock storage modules, a component in the BEEM Specimen Storage System 2000. All Blocklocks can be inserted in a Plastic Protective Box or, by utilizing the adhesive feature, mounted in combination with other Blocklock modules on the BEEM mounting panel that fits in a standard " D-Type" 3-ring binder. Heavy-duty, two tone plastic box supplied with indexed translucent labels for top or bottom of the box. Storage for #69956