7" Outer Plastic Sleeve
48mikron Polyethylene Plastic Sleeve for 7" Singles.
Outer vinyl record protector sleeves are made to house the record as well as the single cover/paper sleeve. These protect the artwork on the cover from scuffs, scratches and tears that may accumulate during use.
This will protect your records card/paper sleeve but will also prevent dust finding the record (and abrading it over time).