The Gates of Sleep (Elemental Masters, Book 2)
| Country | USA |
| Brand | HKS |
| Manufacturer | HKS Products, Inc |
| Binding | Apparel |
| ItemPartNumber | 203L-P |
| Model | 203L-P |
| Warranty | Manufacturer warranty |
| Color | Black |
| ReleaseDate | 2010-06-21 |
| Size | Large |
| UnitCount | 1 |
| UPCs | 088652020331 |
| EANs | 0088652020331 |