Wooden, three-part back strap for the loom. The three rather thin wooden boards are movably connected by leather strips threaded through holes at the ends. threaded through holes at the ends. Cords at the front ends of the two side parts, twisted from plant fibres, which are formed as loops so that they can be attached to the cloth beam in the loom. weaving machine. On the outside, the three wooden boards are decorated with characteristic ornaments in rectangular reserves with frames of diagonal notches. notched sections. In this weaving device (attuskarape), the cloth beam is not firmly attached but is held around the weaver's back with this back strap. By the weaver can control the tension of the warp threads accordingly by making small accordingly.