The ultra-thin, double-sided 3M Tattle-Tape Security Strips  B2 are designed to be applied between pages of books and periodicals.The extra-long liner makes it easier to insert the strip deeply into the gutter, making it virtually undetectable. Assuring a high degree of security for your printed materials, these strips cannot be shielded by the human body, a briefcase, backpack or other common objects.

• Strips reactivate to 100% signal strength
• For less rigid books and periodicals
• Double-sided strips have extra strong, durable 3M adhesive
• Strip inserts deep into the gutter between pages with extra long liner makes them easier to apply
• Virtually impossible to find and remove
• Archival quality, double-sided adhesive will not degrade library materials
• Compatible with 3M electromagnetic security systems