The use together with the recommended 3 to pieces. Pneumatic set of Einhell is limited. These adapters can be attached / pinch only on Reifenfüllmessgerät. However, this connection is not very firm. One can these adapters on Reifenfüllmessgerät and on the blow gun * not * Screw! For this purpose an additional adapter would be necessary, which is not included.
The quality and usability of the adapter itself is - and in terms of price - not so good. The plastic articles not sit tight on your adapter. To inflate an air mattress or similar is it enough.