DAIKEN Retrofit Door Stopper Flap Type Door Side Brown Body [Receiver Sold Separately] VA817-ZCH DAIKEN Retrofit Door Stopper Receiver Only Flap Type T Silver VA817-ZTS Receiver Only About DAIKEN Products: When the door approaches, the receiver's flap rises, and the stopper functions. *Cannot be used in areas using a floor heating system.* *Exclusively for wooden doors and wooden flooring.* Cannot be installed on metal doors, carpets, cushion floors, or other soft flooring materials. *Always install the retrofit door stopper 10-15mm from the door edge.* ■Colors (Part Numbers) T Silver Body + Receiver Set [VA817-ZTS] Receiver Only Brown [Body VA817-ZCH]