This product is made of heavy gauge wire and constructed to hold (16) sixteen rolls of (2) two or (3) three inch core diameter material up to (1000) one thousand pounds. This rack is durable enough to hold up to 72 inch wide material with ease. Proper storage of wide format materials dictate supporting rolls by the core to avoid damaging the special coating on the roll face. The rack comes with (16) sixteen high impact protective plastic rings the prevent material damage while storing on rack. The unit has (9) nine ball caster rollers to allow easy movement with the rack fully loaded.