1 Piece Inflatable Rubber Wheel 4/4.5/5/5.5 Inch Pneumatic Tire Landing Gear Wheel For RC Airplane Fixed Wing Replacement Parts Specifications: Item Name: Inflatable Rubber Wheel Color: Black Size: 4 inch, 4.5 inch, 5 inch, 5.5 Inch (optional) Weight (Including accessories): 4 Inch: 108g 4.5 inch: 12g 5 inch: 185g 5.5 Inch: 220g Note: The weight is for reference only, and the actual object will have a difference of about ±5g, with a normal difference of no more than 10g. Features: - The wheel hub and tire are integrally formed through a mold, which is more wear-resistant and durable. - Thick and elastic tires, good load bearing - Equipped with a sealing air valve, which has good sealing performance and can be inflated and deflated independently as needed. Note: 1. The amount of air inflated to the wheels can be adjusted depending on the site and the weight of the aircraft. In the case of a hard ground, it is generally not recommended to inflate too much, so as to avoid the phenomenon of rebound when the plane lands, and increase the difficulty of operation during landing. (Conversely, the less gas, the lower the rebound force). 2. Don't be too full when inflating, be careful that the wheels are easy to explode. 3. This product does not contain an air pump. If you need to inflate, you can use a general manual air pump (such as for basketball), and you cannot use an electric air pump (because it is easy to be too full) 4. Instructions for the operation of the inflation needle: Tighten the corresponding air nozzle of the inflation needle on the wheel. At this time, you will hear a "squeak" sound, which means that the space in the wheel has connected with the outside atmosphere, and the wheel will automatically inflate until the air pressure is in line with the air pressure. The air pressure outside is about the same. (At this point there are already suitable possibilities for use.) Package Included: 1x Wheel