1、Compact And Lightweight: The cave diving line maker is made of ABS material, ensuring compactness and lightness, making it easy to carry and use underwater. 2、Easy Visibility: The diving line maker comes in bright and vibrant colors, making it effortless to find underwater and ensuring safety throughout the diving experience. 3、Easy Operation: This scuba diving line maker is designed to be easy to use, allowing divers to focus on their diving experience without worrying about complicated setups or operations. 4、Wide Application: Cave diving line rectangular marker is ideal for technical diving, scuba diving, cave diving, and wreck diving. 5、Product Function: Contains 4pcs cave diving line marker, which can meet your needs for safe diving, and it is very suitable for providing signals for partners to make you safer when diving. Item Type: Cave Diving Line Marker Material: ABS Weight: Approx. 66g / 2.3oz 4 x Cave Diving Line Rectangular Marker