MATERIAL AND SIZE - Made of PC + ABC material, Size: Length: approx. 19cm. Inner diameter: approx. 4 cm tube diameter. WIDE APPLICATION - 30 degree angled head for quick shaft adjustment; With 3 mounting points that easily attach to any flat surface, it works with most kayaks 15 x 3.5 x 3.3 cm, fits most kayaks. STORAGE - Used to store paddles in kayaks, garages or fishing nets. Secure your paddle firmly and prevent falls. YOU GET - 2 x fishing rod holders (6 x mounting screws); 2 x Paddle clips (8 x mounting screws) 4cm Length: Approx. 20 cm Mounting point: 30 degree angled head. Paddle holder clips Material: Plastic Size: 5.9 x 1.37 x 1.29 inches / 15 x 3.5 x 3.3 cm Package includes 2 x fishing rod holders (with 6 mounting screws) 2 x paddle holder clips (with 8 mounting screws) Note: Please allow 1-5 mm error due to manual measurement. Thank you for your understanding. This is a fishing rod holder and cap for boat or kayak, easy to install and use product.