1000 Resealable Plastic Bags. This is a new set of 1000 resealable plastic bags. These high quality resealable plastic bags allow you to have the bags you use most on hand. The reclosable seals open all the way to the edges of the bags giving you full use of the interior. Each has a white label block for marker use. Each measures approximately 3" x 4" (76 x 102 mm).