Upgraded Ender 3 Springs Kit,4 Pcs Hand Twist Leveling Nut +4 Pcs Hot Bed Die Springs +5 Pcs Silicone Leveling Column Solid Bed Mounts for Ender 3 V2/3/3 Pro/Ender 5 .(Type 2)

Aluminum Hand Twist Level Nut-Made by high quality aluminum, last much longer than plastic nuts. The torque of these nuts is large, making it easier to fine tune the hot bed. Metal nut is more powerful and will twist more tightly than plastic nuts.
Silicone leveling column made from premium silicone, it is stable, durable and heat-resistant. Can help cutting back vibrations. These silicone buffers serve to replace on your heating bed original springs and it is no longer possible movement, your set levels remain.
Silicone leveling column Model is 4 high and 1 short (don' t include Print firmware). CompatibleEnder 3, Ender 3 V2, Ender 3 PRO, It is also suitable for Ender 5 / Plus / Pro/ 3D Printers, etc.
Note: Will be a little short for CR-10 Series Printers. Please measure your spring size before buying this product to ensure you buy the right model.
Hot bed Die Spring: The 3D printer spring made of spring steel is harder, more durable, has a longer service life and can be reused.