Hi, I am an inventor and my latest invention, the Knockstop is a friendly device to prevent aggression. While still performing all daily activities, the user can not punch other people anymore. Drs.P. Gokkel

Bestel voor elke arm één armholder. Meet de omtrek van de arm bij de ellenboog met een maatlint. Kies de bovenmaat:

Armomtrek/diameter    =    Armholder                      Armomtrek/diameter      =         Armholder
18cm/6cm            =        Armholder-3                              21cm/7cm            =        Armholder-3,5                                                                       24cm/8cm            =        Armholder-4                              27cm /9cm           =        Armholder-4,5                                                                   30,5cm/10cm        =       Armholder-5                              33,5cm/11cm        =        Armholder-5,5
36,5cm/12cm        =        Armholder-6                             39,5cm/13cm         =        Armholder-6,5
43cm/14cm            =        Armholder-7                            46cm/15cm            =        Armholder-7,5




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