Product name: SUP fin Product size: fin:18.3*11.3*3.2cm/7.2*4.44*1.25in fin base:21*7.8cm/8.26*3.1in Product color: As shown in the figure Product material: nylon Product features: 1.Easy Installation: This surfboard fin features a convenient clip-on design, allowing for easy installation and removal. Simply slide the fin into the designated slot and secure it in place with the locking mechanism. This hassle-free setup saves you time and effort, so you can spend more time enjoying the waves. 2.Versatile Compatibility: Designed for use with surfboards, paddleboards, and SUPs, this detachable fin is compatible with a range of watercraft. Whether you're a beginner learning to surf or an experienced rider seeking enhanced maneuverability, this fin is a versatile choice for all skill levels. 3.Secure and Stable: The clip-on style and secure locking mechanism ensure that the fin stays securely attached to your board during intense wave riding. This provides stability and control, allowing you to confidently navigate through the water and perform tricks with ease. 4.Removable and Adjustable: The detachable feature of this fin allows you to easily remove it for transport or storage. Additionally, it can be adjusted to different angles, providing customization options to suit your riding style and water conditions. This adaptability enhances your overall surfing or paddling experience. 5.Durable Construction: Made from high-quality materials, this surfboard fin is built to withstand the rigors of water sports. It is resistant to corrosion, fading, and damage from exposure to saltwater and UV rays, ensuring long-lasting performance and durability. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact me we will give you some suggestion, but it is for you reference only. Shipment includes: 1 pc SUP fin or SUP fin with base