Hole Diameter (Outer Diameter): 18mm; Inner Diameter (Tolerance +0.5mm): 9mm; Free Length: 35mm (+/-2mm); Maximum Compression Rate: 40%; Maximum Load: 422N Color: Blue; Load Type: Light Load; Material: Spring Steel; Surface Treatment: Spray Paint Rectangular section, closed-end design. Die springs are mainly used in die machinery equipment for plastic injection, 3D printer, and electrical components. Using spring steel material, the surface is painted blue, rust-resistant, and highly durable. Package Contents: 1 x Compression Die Spring Immediate purchase welcome, silent purchase at midnight OK ◎ * First come, first served for only one item * Welcome to bulk purchases, feel free to comment * Please contact us before evaluation if there are any defects ・Please understand and purchase with home storage and simple packaging for shipping ( ) ・Please check the actual photos for the condition of the product ♪ ※Basically, we will ship with the box, but Due to shipping costs to sell at a slightly lower price We may ship without the box. If you would like a discount, we may ship without the box. ・I didn't see any noticeable dirt on the product, but there may be oversights ・Opened for inspection ・Items other than fragile items will be shipped in a simple package in a bag ♪ #AzukiSameDayShipping Click here for a list of products! We may offer a discount if you ship together♪ For purchases of 2 or more items of 999 yen or more We will discount from the total amount♪ ・2 items...200 yen off ・3 items...300 yen off ・4 items...400 yen off ※To apply the discount Please let us know in the comments before purchasing ( ) 3-5