USC S-4778 37 X 4 X 30 - 60" 2-PIECE TELESCOPIC BOX

USC S-4778 - 37 X 4 X 30 - 60" 2-PIECE TELESCOPIC BOXES - PROTECT FRAGILE MIRRORS AND VALUABLE ARTWORK. RECOMMENDED FOR LARGE FRAMED ART OR MIRRORS. INSERT PICTURES OR MIRRORS UP TO 36" WIDE. HEIGHT EXPANDS FROM 30 TO 60". TOP AND BOTTOM INCLUDED. - DIMENSIONS: ACTUAL HEIGHT: 60" WITHOUT OVERLAP OF TOP OVER BOTTOM FEATURES: ALL BOXES OPEN ALONG THE LENGTH (FIRST DIMENSION). SEAMS ARE GLUED. SPECIFICATIONS: MEETS ASTM D5118. TERMINOLOGY: 200# TEST VS 32 ECT (EDGE CRUSH TEST): 200# TEST: 60% STRONGER BURSTING STRENGTH. RECOMMENDED BY UPS FOR SHIPPING UP TO 40 LBS. 32 ECT: RECOMMENDED BY UPS FOR SHIPPING UP TO 30 LBS. POUND TEST REFERS TO BURSTING STREN - EQUAL TO S-4778