Size: 4 x 8.5 x 3.9 inches Operation temperature：-4℉ – 150℉ (-20℃ -65℃). Adjustable backset 2-3/8″ or 2-3/4″. Fit door thickness between 1-3/8″ and 2-3/8″. Fit dimension 2-1/8″ hole, no need to drill extra hole Suitable: Both Left hand & Right hand Material: Zinc Alloy , Plastic Color: Satin Nickel  

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