Hole Diameter (Outer Diameter): 25 mm; Inner Diameter (Tolerance +0.5 mm): 13 mm; Free Length: 35 mm Maximum Compression Rate: 24%; Color: Green; Load Type: Heavy Load; Material: 65Mn Rectangular cross-section, closed-end design. Mold springs are mainly used in mold machinery equipment, plastic injection, and 3D printer electrical components. Made of 65Mn material, the surface is painted green, making it rust-resistant and durable. Package Contents: 2 x Compression Die Springs uxcell Spiral Stamping Compression Mold Die Spring for 3D Printer Electronic Components, Green, 2 Pieces ✼••┈┈┈┈┈••✼••┈┈┈┈┈••✼ #You might find a bargain☆iroa♪ ／ Instant purchase OK!! ＼ Opened once for photography. Please check the actual product photos for the condition of the product. ★ We generally do not ship on Saturdays, Sundays, holidays, and other long vacations. Products purchased on Friday may be shipped the following week depending on the timing. ★ Due to shipping costs, we may ship only the contents after removing them from the box or case. ★ These are mainly outlet products. The outer box or bag may have scratches, scuffs, or dents. If you are looking for perfection or are concerned about minor scratches or dirt, please refrain from purchasing. 14.52.1310.95