Detailed dimensions of three versions:
2-in-1 size : 8.5 X 5.3 X 4.3 inches = 2PACK
3-in-1 size : 8.5 X 5.3 X 4.3 inches = 1PACK + 5.3 X 4.25 X 4.3 inches = 2PACK
4-in-1 size : 5.3 X 4.25 X 4.3 inches = 4PACK
Unified size after combination :10.6 X 8.2 X 4.3 inches,Perfect for a 6 quart oval slow cooker,But most 7 8-quart oval slow cookers can also be used,Please check the size before you purchase