12" x 250' Anti-Static Packing Foam Rolls are lightweight, pink anti-static polyethylene foam rolls that protect delicate items for shipping and storage. 12" x 250' Perforated A/S Foam Roll are shock abosorbing and moisture resistant to protect sensitive electronic components from static discharge. Anti-static polypropylene foam rolls keep products clean, non-abrasive and static free. The foam thickness is 1/4". Perforated every 12 inches for easy tear.