The "pocket" of hard shell material fits very well - without too much play, is very stable and can not be easy to open! The opening must therefore be done deliberately, so the device is in absolutely safe! The latter is true even in the case of setting Then - at least when a person makes with 90 kg of body weight of such incident! :) Mir is actually happening and went well to the praise of the container! However, I must also mention that we have made the whole thing at one corner! There, the container may be more stable than in the middle ... Fullcontact experiments must not be!
