USC S-20428 18 X 18 X 40 - 74" 2-PIECE TELESCOPIC TA

USC S-20428 - 18 X 18 X 40 - 74" 2-PIECE TELESCOPIC TALL BOXES - SAFELY SHIP AND PROTECT YOUR ODD-SIZED PRODUCTS. ADJUSTABLE 2-PIECE DESIGN FITS PRODUCT SNUGLY TO PREVENT DAMAGE FROM SHIFTING. RECOMMENDED FOR RUGS, GOLF CLUBS OR LAMPS. FEATURES: SEAMS ARE GLUED. ALL BOXES OPEN ALONG THE LENGTH (FIRST DIMENSION). SPECIFICATIONS: MEETS ASTM D5118 AND D3951. 200# TEST VS 32 ECT (EDGE CRUSH TEST): 200# TEST: 30-50% 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 STRENGTH: 200# TEST BOXES WITHSTAND 200 LBS/SQ.IN. OF SIDE WALL PRESSURE BEFORE BURSTING. EC - EQUAL TO S-20428