Description: 【Plastic Material】: Elliptical Axle Cover is made of plastic to ensure reliability and extend the life of the exercise bike 【Stylish Decorative Design】: Pedal Arm Axle Cover's rounded design and exquisite details add a modern and stylish feel to your fitness equipment, enhancing its overall beauty 【Core Component Protection】: Exercise Bike Accessory is designed to protect the center shaft and chain cover, effectively protecting the important parts of the exercise bike from dust, dirt and scratches, keeping the equipment clean and well maintained 【Size】: Elliptical Axle Protection Cover outer diameter 5.4cm/2.13inch, inner groove diameter 4.6cm/1.81inch, hole diameter 2.5cm/0.98inch, gap width 0.3cm/0.12inch, thickness 0.75cm/0.30inch, these covers are designed to fit seamlessly onto your exercise bike 【Replacement Parts】: Replacement Accessories is an ideal spare repair part for replacement, containing two pieces to ensure complete installation or replacement Size Chart: Outer diameter 5.4cm/2.13inch Inner ring slot diameter 4.6cm/1.81inch Hole diameter 2.5cm/0.98inch Gap width 0.3cm/0.12inch Thickness 0.75cm/0.30inch Package Includes: 2 Elliptical Axle Covers Note: Please allow slightly errors due to manual measurement and different monitors.