Dense Brush: thin and dense silicone bristles can penetrate deeply into the narrow corners and crevices of the sewing machine to clean away accumulated dust, and threads. Reusable: the brush head after use can be washed with soapy water and air dried to remove dust and lint on the cleaning tool brush so that it can be applied again next time. Practical Material: the brush is composed of a soft silicone brush head and a plastic handle; The brush head part is made of silicone, which is light and soft, not easy to break, can be bent and rebound at will, and can be easily incorporated into space of various shape. Suitable Size: each cleaning tool brush is about 4-1/8 inches/10.5 cm, including the 1 inch long brush section; Enough to reach deep into tight, hard to reach crevices in sewing machines Practical Set: we provide 4 silicone brush heads of different shapes, which can be applied inside various spaces; 5 pieces each, 20 pieces in total, a sufficient quantity to use for a long time. Soft and fine: The light and soft brush head can not only fit the parts for cleaning, but will not harm the fine internal parts. It is a safe cleaning tool. Light and easy to carry: The compact size and weight easy to carry around. In addition to cleaning sewing machines, it can also be applied to clean various precision machines and parts. Colour:As Shown Material:Silica gel Size:.4-1/8 inches/10.5cm Package Contents: 1set * sewing machine cleaning brushes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.