advantage :

1. effient cleaning, save time and cost .

2.make the glassware cleaner.

3.stackability: snap-fit construction shortens assembly time, and stack with all racks nearly.

4.reliable connection: snap-fit etenders will not loose or tust over time like screws and will not come apart.

5. convenicent handling & delivery:

the handles  on all four safely.

6. open profile: allows top-to- bottom and side -to- side washing make the glassware cleaner.

9- compartment glass rack