DURA LIFT Ultra life max 2 in dual cage, sealed 6200ZZ bearing 10 Pack Gold Nylon Garage Door Roller "Cordless Leaf Blowers" Blade Diameter 10 Maximum Cut Color Finish:Highland Walnut Blade Diameter 10 Maximum Cut Depth @ 90 Deg DEPENDABLE Ideal for emergency or daily supplemental use ECONOMICAL Cut heating bills by warming only occupied areas COMFORT Manually adjust the heat setting to your desired temperature SAFE Built in oxygen depletion sensor (ODS) immediately shuts down the heater if carbon monoxide or lack of oxygen is detected CONVENIENT 1 continuous press of the battery assisted igniter makes ignition quick and effortless VERSATILE Includes all necessary hardware and bracket for wall mounting UPGRADEABLE Separately sold optional base legs (WBL100) provide the alternative of floor mounting heavy duty ultra life rollers sealed 6200ZZ ball bearing plus double plating thickness on stem designed for maximum performance and ultra life weather protection Hurricane rated: the 7 inch stem permits support from 2 hinges to increase durability during a high wind hurricane or other severe weather Dual wall bearing cage: dual walled