5/16" gearing to be used on GENERIC Casement Windows.
If unsure of your gearing size, please email us at Shadedoctor@yahoo.com or call us at 207-299-7153 for instruction.
PLEASE NOTE: All Orders are shipped via the US Postal Service. If you do
not have a valid USPS address and require UPS or FedEx shipping, you
MUST contact us in advance of purchase to make arrangements. Additional
charges will apply.