It is designed to open unlocked door without damaging it which are closed without locking and the key is forgotten inside or lost. Thanks to its very thin and flexible structure, it is successful in all types of doors (ie. wooden, PVC, aluminum etc.). It is made of extremely robust and stainless steel
SH-18 is RED. It is 0.15 mm thick.
It is now possible to open gradual and thick doors with this product.