These 150mm Apex Orange Doughnut Tread Wheels are a strong and durable high quality polyurethane wheel which has been ergonomically designed to improve and ease push and pull movement. The doughnut style tread makes cornering with ease, ergonomic wheels that are quiet and dispel debris. These wheels can accomodate high load capacities and with sealed bearings, reduces the need for regular maintenance. 150mm CC Apex Doughnut Tread Wheels