Based solely upon the printing on the boxes Saran Quick Covers came in, over the life of the product Saran has shrunk their diameter as follows:
| Small | Medium | Large | XL | Description |
|---|---|---|---|---|
| 9 7/16″ | 12 1/8″ | 19 1/4″ | Plastic tubs | |
| 8 1/2″ | 12 3/4″ | 17 1/4″ | Original variety packs | |
| 8″ | 12″ | 17″ | 23″ | Later variety packs – only holiday variety packs included XL |
