Bullet Points: 1.Comfortability Enhanced: Brace Joint Support is built with durable, breathable fabric, making it comfortable to wear for an extended period. It won't easily get damaged. 2.Adjustable Design: Brace Joint Support boasts a sleek, adjustable design that can be finely tuned to fit your leg size. The firmly fixed magic sticker ensures the brace stays in place. 3.Removable Spring: Stitches on the Brace Joint Support are precise and firm, making it easy to remove the removable spring and providing progressive joint support. 4.Strong Joint Support: Brace is designed to prevent knee injuries with its three carbon steel springs and a strong elastic spring that decompresses up to 20KG, providing unparalleled support. 5.Wide application: Trust every move with extended knee support, ensuring maximum comfort and stability while skiing, cycling, hiking, running, and playing basketball or tennis. The Knee Booster Brace is perfect for preventing knee injuries while playing volleyball. It's comfortable to wear and firmly fixed, thanks to precise and firm stitches. Don't let knee dsicomfort ruin your game Material: heavy neoprene + polyester fiber + carbon steel spring Weight: 235g Color: black gray Suitable for: daily running training, fitness squats, cycling, climbing (The wrench is placed in the product package) How to wear: Step 1: Loosen ones set bolt Step 2: Grasp the opposite retaining bolt and pull the shaft out Step 3: Hold the upper/use both hands to place the spacer on the product and gently pull up and down to its removed. Once detached, you can add the number of springs according to your desired elasticity Notice: 1. Due to manual measurement, there may be a little error in the size. 2, Due to different monitors, there may be slight differences in color.