Compatibility - Designed specifically for compatibility, these fittings ensure optimal performance with a variety of popular 3D printers including the CR 10, CR 10S, S4, S5, CR 10S Pro, Ender 3, and Ender 3 Pro. them to work seamlessly with your equipment, enhancing your 3D printing experience without any hassle or guesswork. Metal Construction - Crafted from metal, these pneumatic fittings boast high hardness and durability. The robust materials ensure a lifespan, making them to wear and tear during frequent use. You won't have to worry about replacements anytime soon, giving you peace of mind while focusing on your projects. Easy Installation - Featuring a push-to-connect design, these fittings allow for straightforward and efficient installation. The male thread of the quick coupling ensures a secure connection, eliminating the need for special tools or complicated setups. Simply insert into the 4mm tube and you're good to go, enabling a setup process for your 3D printing needs. Value Pack of 5 Sets - This package includes five sets of fittings, providing ample quantity to meet your various project demands. The distinction between silver (PC4 01) and gold (PC4 M6) fittings helps you easily identify and use them as needed. Stock up and never run short during printing sessions. Secure Self-Locking Feature - The unique design of the fittings includes a self-locking mechanism that ensures a reliable connection. Once installed, you can be confident that your tubing won't loosen or detach during , allowing for consistent and precise printing results every time you use your 3D printer., Manufacturer: ACOGEDO