INFANS Newborn Baby Stroller Carriage, 2 in 1 High Landscape Convertible Reversible Bassinet Pram, Foldable Aluminum Alloy Pushchair with Adjustable Canopy, 3D Shock Absorption PU Wheels (Light Grey)PU Wheels with 3D Shock Absorption: With anti shock design, each PU wheel with three springs to absorb shocks and protect babys brain and body. By the 3D shock absorption, our pram can ride smoothly on all types of everyday terrain. The front wheels can 360rotate or be locked in one direction. And the rear wheels are also lockable that you can rapidly control it with the foot activated brake. Our PU wheels are wearable and durable than EVA or rubber