Grocery and Retail T-shirt Shopping Bag 1/6 Size Buff Thank You 18 Mic Great for retail store use, grocery, take-out, trade shows and more. Size: 11.5"X6.5"X22". 18 micron gauge. Packed 600 bags per case. HDPE plastic, standard retail bag. Extra thick (average grocery bag is 11-13 microns - ours is 18!)