I am selling this because I accidentally bought it, as my door already has a stopper. It is new and unopened. Product size: When in use: Approximately W4.5 x D7 x H28cm, When stored: Approximately W4.5 x D4 x H17cm Quality indication: Main body: Steel (powder coating), magnet, stopper tip/anti-slip: Silicone Doors that can be installed: Steel doors with flat surfaces that magnets can attach to. *Cannot be installed on doors where the distance between the bottom of the door and the ground exceeds approximately 15cm. Color: White When stored: Approximately W4.5 x D4 x H17cm