Our 25mm springs is specially designed for Crealty Ender 3 S1 Plus, made of high quality spring steel, fatigue and heat-resistant,durable for use. Replacing the original spring on the printing bed of the Ender-3 S1 Plus 3D printer to obtain a stronger spring, can avoid leveling the bed every time before printing. And fit some 3D printer beds, die machinery, or other applications.
Of all the mold springs in color, yellow is the one with the lightest load. However, since die springs are well suited for high-stress applications, they are also suitable for a variety of other applications as well.

Spring Sizes:
0.31inch/8mm Outer Diameter
0.16inch/4mm Inner Diameter
0.98inch/25mm Free Length

Package Included:
10 pcs x 3D printer bed springs 25mm