Mobility walker (Littlehampton BN17)

I'm desperately looking for a mobility walker with pneumatic tyres, the walker I have really restricts where I can go, as the pavements are all so lumpy and I have enough problems with my hands and wrists as it is. I'd love to be able to go for walks through the parks and woods with my husband. Would be absolutely fantastic if someone has one that they no longer use/need. Would really appreciate it ☺️
Thanks in advance 🤞🤞🤞