Pop Out curtain cubicle track carrier, hook portion releases, allowing the curtain to fall Patented canted wheels effortlessly glide through track Tip from the Pros: Use the following formula to calculate how many carriers Inpro recommends fpr 10% fullness - (Total track length * 2.2) + 2 = Total recommended carriers Example: 10' track = (10 * 2.2) + 2 = 24 carriers *While this product is designed for behavioral health applications, it does not guarantee patient safety