Item Type: Diving Line Marker Material: PVC Application: for Scuba, Cave And Wreck Diving Product Size: Diameter: Approx.6cm/2.4in Thickness: Approx.0.4cm/0.2in Gross Weight: Approx.44g/1.6oz Package List 5 x Diving Line Marker 1PVC Material: These diving marker are made of high quality PVC material with high strength and wear resistance, having good performance for long service life. 2Compact Size: Has a diameter of 6cm/2.4in and a thickness of 0.4cm/0.2in, easy to install and use, can also be easily stored into your backpack or pocket, saving your time and energy. 3Application Scope: Ideal replacement for the old or damaged original part, suitable for scuba, cave and wreck diving, improving your using experience feelings. 4Powerful Features: Due to the PVC material, the diving safety rope marker has the features of being lightweight, compact, durable and corrosion resistant, suitable for long term use. 5Rich Content: There are 5 makers included in the package, the rich content can meet your needs to have a safe diving and have a signal for partners.