4pcs Indoor Bike Trainer Stand Rocker Feet Adapters with 8pcs Tennis Balls, for Indoor Bicycle Trainer Training Stationary Bikes, Stability Accessories for Smart Bike Resistance Trainer

About this item SEAMLESS COMPATIBILITY – Perfectly matched with Wahoo Kickr Core, this replaceable joystick design ensures seamless connection of your device, simplifies the conversion process, and allows users to prepare for exercise without worrying about complex installation or adjustments DURABLE MATERIAL – Made of high-quality wear-resistant materials, the balance ball embedded in the control lever plate is specially designed to withstand high-intensity training. Its excellent durability not only extends the service life of the product, but also effectively protects the floor and surrounding environment IMPROVED SPORTS COMFORT – The introduction of a balanced ball foot design makes the riding process smoother and significantly reduces the pressure on the body during exercise. The 67mm diameter sphere provides 10 ° horizontal movement in all directions, helping users experience higher comfort and reduce joint burden during indoor training CORE STRENGTH ACTIVATION – The upgraded design focuses on enhancing the core muscle group and improving body balance, ensuring that every exercise is challenging and effective. Users will find new motivation in static coach cycling, enhancing exercise effectiveness and enjoyment SAFE AND EFFICIENT CHOICE – Our replaceable joystick balance ball provides you with a safe, efficient, and stable indoor riding experience. Choose our product to quickly enhance your cycling equipment, making every workout full of joy and a sense of achievement ATTENTION – The product is injection molded rather than 3D printed. To ensure stability after installation, our product interface is designed to be relatively tight. If you find it difficult to install after purchasing, you can apply lubricant to the rubber feet before installation. If it is still difficult, you can try tapping lightly with a cork hammer.