Diameter 238mm, smaller than diameter 240mm plate , so you can attach it better to the plate
Suitable for diameter 240mm glass plate or hot bed
When you use PLA filament, it can be printed on directly without heated bed, or with heated bed disabled.
If you use a heated bed with it, set the bed temp to 40-45°C for PLA filament when room temp is lower than 15°C
If you use a heated bed with it, set the bed temp to 80-90°C for ABS filament.