Thank you bags are designed for use in grocery stores, retail shops, and convenience stores. Durable, consistent quality HDPE barrel thank you bag. Show your customers your appreciation with thank-you messaging on the bag. Application: T-Sacks; Thickness: 12 microns; Material(s): High-Density Polyethylene (HDPE); Bag Size: 11.5 x 6.5 x 21.