Features: Craft from PVC, each rectangular marker ensuring long timing visibilities and use in various diving conditions. Essential for underwater navigation, this set of 5 cave diving line markers offer guidance with its multifunctional designs. Great for scubas diving who seek practical underwater orientation, these markers are a indispensable tool for adventurers. Whether exploring or navigating, these line markers provide a clear route, enhancing safety during your underwater expeditions. These cave dive line markers not only mark safety cave line but also point out directions, making them a essential accessory for diving. Specifications: Materials: PVC Color Optional: 4 Color are Available as Shown in the Picture. Package Weight: approx.80g Size: approx.8.4x8cm/3.30x3.15in Package Includes: 5Pcs Diving Guide Marker note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!