The ball lock post is made of stainless steel, and it is safe and non-toxic. You can install it on the beer barrel. The ball lock post can be used repeatedly and durable for long time use. <br> <br>Features: <br>Made of stainless steel, safe and non-toxic, odorless and anti-rust. <br>It is applied to connect other accessories, such as: O-shaped ring, poppet valve, pipe and nut. <br>Easy to install: easy to install the ball lock post, just screw tightly the ball lock post. <br>Reusable and durable: the ball lock post can be used repeatedly and durable for long time use. <br>Comes with the 2 ball lock posts, and it can meet your need. <br> <br>Specifications: <br>Condition: 100% Brand New <br>Material: Stainless Steel <br>Color: Silver <br>Weight: approx. 124g/4.37oz <br> <br>Package List: <br>2* Ball Lock Posts <br> <br>Note: <br>1. Please allow 0-2cm error due to the manual measurement. Thanks for your understanding. <br>2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.<br>1、Made of stainless steel, safe and non-toxic, odorless and anti-rust <br>2、The ball lock post is suitable for coming air and the overflow water <br>3、Easy to install: easy to install the ball lock post, just screw tightly the ball lock post <br>4、Reusable and durable: the ball lock post can be used repeatedly and durable for long time use <br>5、Comes with the 2 ball lock posts, and it can meet your need