Product size about : 24*16cm/9.4*6.2'' Product color: As shown in the figure Product material:gel product features: 1. Provides dual hot and cold therapy for your knees, ideal for relieving joint pain and muscle soreness after sports or activities, offering flexible comfort whether you need cooling or warming. 2. Features soft, skin-friendly materials that feel gentle against your skin, ensuring safe and comfortable wear without irritation, making it perfect for daily use. 3. Delivers fast cooling with advanced gel technology that quickly absorbs cold for rapid temperature relief, helping to reduce swelling and discomfort effectively. 4. Crafted from , reusable materials that hold up well over time, so you can use it repeatedly without worrying about leaks or damage, supporting sustainable habits. 5. Simple to operatejust place it in the freezer for a couple of hours to chill or warm it as needed, for easy and convenient application whenever pain strikes. 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 contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Hot and cold knee pads