Feature -This width adjustable floor guide is suitable for both pre-grooved and non-grooved doors. - Unique dual wheel and bearing design ensures smooth and stable Operation. - Before purchasing, please make sure the size matches the door to be installed. - Which ensures high performance for your sliding gate. Two slotted head screws design provides a secure lock to prevent the door from swinging sideways. -Attention: To ensure a successful installation, please check the distance between the door and the wall before purchasing. Parameters Color: as the picture shows Material: stainless steel Size: 10 * 40 cm (3.9 * 1.5 inches) Package 1 x sliding door track