A beater is a weaving tool used to push the weft yarn firmly into place. It consists of a wooden frame, with a wide horizontal slat above, which might either have a separate handgrip or otherwise simultaneously serves as the handgrip, and a narrower horizontal slat or bar below. In between and all along the length of both horizontal slats is a comb-like structure of vertical strips of a rigid material, often thin metal strips, through which the warp threads pass. In Thai, this weaving tool is referred to as feum.