The FloraClip's intended use is to automate your FloraFlex® FloraCap®. Using 1/4 in OD tubing, feed the tubing through the opening of the FloraClip, finally, clip it on your preferred location on the FloraCap®. It is recommended to use two FloraClip's per one FloraCap®. Made with BPA and lead-free plastic. FloraCap® #714878 sold separately.