Product name:Reinforced 2-Pack Inner Tubes for M365 Electric Scooter - Heavy Duty, Anti-Puncture Product size about :21cm*6cm*21cm 520g 8.27" x 2.36" x 8.27" 1.15 lbs Product color: Classic Black Product material:High-Strength Rubber + hard Silicone product features: 1.Heavy-Duty & Extra Puncture Resistant Constructed from thicker-grade rubber compared to standard tubes. Offers enhanced resistance to punctures from thorns, glass shards, and other common road debris, giving you a more reliable and worry-ride. 2.Superior Durability & Elasticity High-elasticity rubber material that is less prone to aging and cracking. Withstands higher pressure and stress, providing excellent shock absorption and a longer service life, which translates to better value for your money. 3.Precise Fit for Easy Installation Specially designed for M365/M1 Pro electric scooters. Ensures a perfect match for your scooter's wheel rim and tire, making installation straightforward and hassle- when you need to replace a flat. 4.Convenient 2-Pack Value Comes as a set of two identical high-quality inner tubes. Perfect for keeping one installed and the other as a ready-to-use spare in your backpack. Be prepared for any situation and avoid long downtime. 5.Maintains Riding Comfort Works with your standard pneumatic tire sys tem. Unlike solid tires, our heavy-duty inner tubes preserve the smooth and comfortable feel of an -cushioned ride, while simply adding an extra layer of protection. 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 feel to contact mewe will give you some suggestion, but it is for you reference only. Shipment includes:2 x Heavy-Duty Inner Tubes for M365 Electric Scooter