Compatible for:for Creality Ender-3 S1 CR-10 Smart Pro Printer Sprite Extruder Size of nozzles:0.4mm Voltage and Power: 24V 40W for High Temp Pro 300= Heating Block Kit-High Temperature Pro (300) Note:Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:plastic Package Contents: 1 x Heating Block Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.