Fixed : high strength,and can firmly paddle for boatings,do not worry about loss. Good accessories: paddle connector replacement suitable for boat lovers,great accessory for paddle. Easily to use: this plug consists of tube and two threaded cap,paddle joints easily to assemble and use. Features: paddle connectors are ABS,robust,rust protections and. Ergonomic designs: each plug is ergonomically designed,and portable,easily to carry.