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Product Name:Compression Spring.
Color:Silver.
Material:Steel.
Suitable Type:Push-Type Pen.
Wire Diameter:0.4mm.
Outer Diameter:4mm.
Total Length:30mm.
Feature:Smooth Surface, Uniform Spacing, Uniform Spring Spacing, Uniform Force, And Stable Rebound.
Quantity:100pcs.
44sunsets
Reviewed in Australia on May 23, 2024
I've tried a variety of springs from various ballpoint pens and these ERDANER springs perform exactly like those. Not too soft and not too stiff, these are just right. Works brilliantly for all your hobby/maker needs.It's actually a bit cheaper to buy lots of ballpoint pens in bulk and then use the springs from those, but I can't in good conscience justify creating yet more landfill.
Dorothy
Reviewed in Canada on October 20, 2023
Not too springy or well made
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