Plastic Bubble MailerBubble mailers provide secure, lightweight and cushioned protection. Strong plastic material is tear-, moisture- and tamper-resistant. Self-adhesive closure and Easy-Open Tear Strip make sealing and opening simple and convenient. Inside dimensions listed. Recyclable. Made with the same materials as recycled plastic bags. Envelope Size: 10 1/2 x 5; Envelope/Mailer Type: Mailer; Closure: Self-Adhesive.