These REDSPIDER beadlock wheels and tires are game-changers for your RC crawler! The set includes 4 complete wheel and tire combinations with 55mm outer diameter and 23mm width, perfect for 1/18 and 1/24 scale models like SCX24, TRX4M, FMS, FCX24, and others. The super-soft composite material gives incredible grip on rocks and rough terrain, while the aluminum CNC-machined wheels are both lightweight and durable. The beadlock design is brilliant - no more messy gluing! Instead, you use screws to secure the tire to the wheel, creating a solid connection that won't separate during aggressive crawling. The 7mm hex fits standard axles, and the circular hole pattern in black looks aggressive and realistic. Installation is straightforward, and the package comes with everything you need. These tires dramatically improve your crawler's performance with their sticky compound that grips surfaces you never thought possible. The aluminum wheels add that premium look while saving weight compared to plastic options. Whether you're crawling indoors or tackling outdoor trails, this wheel and tire combo gives you the traction and style to dominate any terrain. The quality is immediately noticeable - from the precise machining to the thoughtful packaging. Definitely one of the best upgrades you can make to your micro crawler!