Thank you very much for your reply!
Products Description:

The delta 3 d printer heating bed upgrade kits
List:
1:Heat the bed 1 PCS(Wire has good welding, welding thermal already）
2，The power of 250 w DC24V 1 PCS
3，Relay board 1 PCS
4，M3 * 30 screw 3PCS, spring 3PCS, 4PCS M3 nut
5，The M5 * 10 4 screw