Durable Structure - Sturdy sidewalls: 3-layer non-woven fabric & 1.7mm cardboard insert; Bottom: 3-layer thick non-woven fabric & 1.7mm foldable cardboard insert panel PVC Clear Top: 0.15mm thick. 【CARDBOARD INSERT, FOLDABLE & PORTABLE】 Our lightweight cases have reinforced strap handles and are easily folded when not in use; 1.7mm thick, sturdy sidewall & bottom panel cardboard makes our containers stackable and portable for lifting, traveling and transporting.
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