SKU                        Size Range                                             Best for:

SP4_12CPP             318 mm to 322 mm                              Older 1960 to mid 80's singles and smaller gate-fold albums

SP4_12.75CPP       324 mm to 328 mm NEW PRODUCT!    Newer "small" gate-folds, some Mofi, Blue Notes, etc...

SP4_13CPP            328 mm to 332 mm                                Very large gate-folds (doubles and triple album) large Mofi, Blue Notes, etc...