Spring loaded casters with brake Wheel Material:Iron core,PU wheels Size:5" x 50mm ; 6" x 50mm ; 8” x 50mm Loading Capacity:280kg ~ 350kg Bearing Type:Dual Ball Bearing
Generally, only very high-end wheelchairs have shock absorption built in, necessitating wheelchair-accessible entrances to buildings. “It’s difficult and painful to use a wheelchair to cross the street, with the chair’s rider feeling the strong impact of a chair going off the sidewalk and onto a curb,” said Barel. “With a SoftWheel-equipped chair, a wheelchair user can cross streets or go down steps without feeling the impact.”

Not to mention, they're virtually invulnerable to sabotage, as they can't be slashed, and their inner workings are protected both from malicious acts and from mud, dust and water by big metal plate covers. So they can also be made bulletproof for military vehicles.
Previously on bespoken we’ve featured articles on manual and motorised chairs which help the user negotiate uneven streets and rougher pathway, but a lot of them have been both expensive and a bit impractical for day-to-day use. A new Kickstarter, Loopwheels, addresses this problem with a simple and far more affordable design. Loopwheels contain integral suspension meaning the wheels absorb more shock than a standard wheel and allow the user to negotiate tougher terrains with greater ease and comfort. The Kickstarter also says that they can be fitted onto most standard wheelchairs. Following up from a successful campaign to raise funds for the Loopwheel as a bike wheel, this latest project has already raised over half of its £16,000 goal with 28 days left to go.