Add a professional look to customer orders and client requests with these Staples medium-size white poly bubble mailers. Handle a variety of mailing tasks with these bubble mailers. Sturdy poly construction offers moisture resistance to protect contents from potential damage, and the peel-and-seal closures make setup quick and easy. Each envelope features a lightweight design to help manage shipping costs. With 25 pieces in each carton, these Staples medium-size white poly bubble mailers are ideal for small operations. Usable inside dimensions: 7.13"W x 10.75"L. Overall outside dimensions could vary. Comes in white and made of polyethylene. Single use self-sealing closure. #1. 25 per carton. Interior bubble lining keeps contents safe during transit. Sold as 25/Carton.