Ideal for marine exploration, snorkeling trip, or capturing shot in pools, oceans, or outdoor activity scenario The 28.5mm carbon buoyancy stick with 1/4inch thread prevents underwater sinking, offering superior floatation for cameras during diving or photography Design for underwater photographers, travel bloggers, and diving enthusiasts requiring stable, durability gear in aquatic environment compactly enough for backpacks storage, this buoyancy extension rod maintains equipment while resisting saltwater damage during prolonged use Its lightweight carbon construction ensures corrosions resistance and ergonomic 28.5mm grip, compatible for most devices via universally 1/4inch threading