I tear off a seal (backing paper) and only put it.
The locking, solution lock is done in one-touch, too.
For security measures.
For indoor ventilation.
A color: German bronze
Width X depth X height (mm): 80*12*18.5
[materials / finish]
Stainless steel SUS304 (the firing painting)
In the case of use, please use it every less than 8cm for ventilation use.
When you close a door after ventilation, please return one touch to a closed state.
Please use it until adhesive tape is completely glued on the sash frame after installation after leaving you unattended all day long.