12" Round Bottom Vinyl LP Record Inner Sleeves
High-Density polyethylene (Custom thickness)
Anti-static material.Archial quality
Protects against abrasions from inner cardboard and grit
Round bottom makes insertion into record jackets easier.
Just for 12" 33 rpm LP records.
Passed a Photo Activity Test (P.A.T.) certifying that they are safe for long-term storage.