Top-Loading Clear Sheet Protectors – Letter Size. Why choose our Top-Loading Clear Sheet Protectors?. MPN: Sheet_Protectors_for_Binders Model: Sheet Protectors for Binders Features: PVC-Free,Top Loading,Organizing,Storing,Protecting,Clear Finish for Visibility,Professional Appearance,Pre-Punched Holes,Easy Insert and Removal,Ideal for Project Info,Work Proposals,School Reports Ring Size: 1in.