1, material: torsion bar is a stick made of plastic, metal or wood, which can be twisted into various shapes. Velveteen is a flower made of velvet, ribbon, paper and other materials, which can be used for decoration and hand-making.

2. Manufacturing method: The manufacturing method of torsion bar is to use the characteristics of the material itself to create shapes by twisting and bending. It is necessary to twist, bend or weave the rods into various interesting shapes and patterns. The method of making velvet flowers is to make flannel or other materials into flowers through manual processes such as cutting, folding and sewing.