When precision, reliability, and efficiency matter, the Toolinx 200PCS Spring Assortment Kit is your go-to solution for repairs, replacements, and custom builds. Engineered with a professional's mindset and designed for everyday practicality, this kit combines function, durability, and convenience — the essential values of our brand. Built for real-world applications, this set features compression and extension springs in 20 essential sizes, all made from zinc-plated carbon steel to resist rust, deformation, and wear. Whether you're tackling a complex mechanical job or performing quick fixes around the house, every spring delivers strong, consistent tension or compression without sacrificing flexibility. The kit is housed in a durable, compartmentalized storage box, ensuring you can identify and access the right spring in seconds, saving time and avoiding clutter. It's the kind of thoughtful design that serious DIYers, mechanics, and technicians expect. Includes 20 Different Sizes: Extension Springs: 13/64" × 13/16" 7/32" × 1" 1/4" × 7/8" 5/16" × 1-1/8" 5/16" × 1-1/4" 11/32" × 1-27/32" 5/16" × 1-3/4" 9/32" × 2-13/16" 5/32" × 3-1/8" 3/16" × 1-3/4" 9/32" × 1-1/2" 11/32" × 1-7/16" Compression Springs: 9/32" × 1/2" 1/4" × 13/32" 7/32" × 11/16" 3/8" × 5/8" 3/8" × 3/4" 23/64" × 1-3/8" 7/32" × 1-1/2" 9/32" × 3/4" Whether you're in auto repair, equipment maintenance, home improvement, or hands-on DIY engineering, this comprehensive spring kit is the reliable, no-nonsense tool companion that belongs in every serious toolbox. Toolinx, we believe tools should be smart, simple, and built to perform, just like this spring set.