Pride Mobility QUANTUM electric power wheelchair all-terrain drive wheels. Cheng Shin 4.00-6 knobby tread tire. Foam-filled (solid) flat-free tires. Affectionately called a 14″ X 4″ tire. Two-piece wheel fits the five-lug hub ONLY!! Pride Mobility part #. These all-terrain knobby tread “community” tires are foam-filled (solid), or sometimes called “flat free”. No worries about your tires going flat. Maximum traction in any outdoor terrain. Usable indoors, too as the tire compound is a non-marking vinyl composition. Increases the width of your power base by about 3. Easy to install on your existing 5-lug hub. Lug nuts are not included, just use your existing lug nuts. Optional accessory for any current Pride Mobility Quantum electric power wheelchair that uses the five-lug hub. Works with models such as: R-TRACK, Q6 EDGE, Edge HD, EDGE 2.0, EDGE 3, EDGE 3 Stretto, 4-Front. Older models that also use the five-lug hub: Q6 Edge, Q6000, Q600, etc. Direct replacement for the narrower 14″x3″ (3.00-8) tire/wheel when mounted on the same five-lug hub. THE POWER WHEELCHAIR PICTURED IS NOT INCLUDED IN THIS LISTING. THIS LISTING IS FOR THE TWO DRIVES WHEELS ONLY! THE WHEELCHAIR PICTURED IS FOR APPLICATION REPRESENTATION ONLY. PLEASE CHECK YOUR APPLICATION! Please note: We make every reasonable effort to list our items with a complete, accurate description and multiple photos. We sell items at a discounted price. Thank you for supporting our family owned business!