Official Creality Metal Leveling Nuts with 20mm Die Springs and 0.4mm Nozzles, Red Hand Twist Nuts Set for Ender 3/3 Pro/3 V2/3 Max, Ender 5/5 Plus/ 5 Pro, CR 10 Series 3D Printer Bed

Perfect fit. Very necessary upgrades.

These are beautifully made and they work really well. Word of caution though, especially if you have the ender 3 Pro and a glass bed. After installing these you WILL need to adjust your Z axis because these springs are a longer than the stock springs so you will not be able to home without smashing your nozzle into the bed. Im new to 3D printing and thats what happened to me. My bad but hey, you live and you learn. But yeah get these theyre good.

Easy to install, great upgrade for my Enders 3 Pro.

I wasnt sure these springs would make much of a difference on my old ender 3 but I am happily mistaken to see that I was wrong. The print quality has really improved and I dont have to level my bed after every print which increases my productivity.

Love these knobs and springs. I do not have to level my bed as often!

About 5mm too long even when springs are fully compressed, hopefully the printer wasnt damaged when it auto homed...

Works well

Great upgrade for ender 3. It would be awesome if they added a 5th yellow spring for the extruder replacement. Good spares to have on hand for sure.

Worked perfectly first time. Has been in use now for 3 months with no problems. Would buy again.

The springs are nice and stiff and the nobs are a great color and sleek. Easy the level a bed with this combo