The bead on both sides can adjust the elastic line, you can adjust the tightness by rotating the wooden handle as needed. This weaving beading machine with enough threads and you can select proper spacing as required, that can meet the different requirements of the finished product. This weaving beading machine is very easy to use, can be used with any size of seed beads to make beautiful necklace or bracelet by yourself, that can allows you to experience the fun of DIY knitting and beads. And the Applicable thread includes: nylon thread, jewelry thread, crystal thread, etc. You can use it to make bracelets, necklaces, belts, earrings, bracelets, rings and even mobile phone cases flexiblly.