Compatibility: compatible with most 3D Printer Bed, great for Creality CR-10 10S S4 Ender 3 Heatbed Springs Bottom Connect Leveling
Advantage: the die springs are stiffer than ordinary spring, which help your 3D printer much more stable while printing
Size: hole diameter (OD): 0.31"/ 8mm; rod diameter (ID): 0.16"/ 4mm; length: 0.78"/ 20mm
Note?there are many small parts in the package, for safety, please keep them away from children
Additional instruction: generally speaking, there are yellow, blue, red, green, brown springs sorted by different load, AiTrip die spring is the YELLOW one, which is the lightest load one; the heatbed springs are well suited for high stress applications, but also suitable for various of other applications