Peleman Thermal Binding Clear Covers with Steel Spine –for Thermal Binding Machines – Formerly Unibind – Used in Real Estate, Education and Various Businesses (Aluminum, 160 Sheets Max - 44/Box)

Thermal Binding Flex Covers (Not Spiral or Comb): Unlike traditional spiral or comb binders, these covers use thermal binding and a steel spine for a clean, durable finish — no plastic coils or clips.