Approx. 16 to 20 Shrimp make up a lb. and they come in units of 5 lbs. per pkg (about 90 Shrimp per pkg). These are headless, shell-on Shrimp, so you get the important part; the Shrimp Meat. This size is recommended for the Broiler, Deep Fryer, or boiling pot. This is the best all-purpose size Shrimp! MAKE SURE and SELECT UPS NEXT DAY, 2ND DAY AIR OR 3 DAY AIR SHIPPING WHEN CHECKING OUT WE CANNOT SHIP IT OUT OTHERWISE. WE SHIP FROZEN PRODUCTS ONLY ON MONDAY'S OR TUESDAY'S.