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 can be washed with soapy water and air dried after use to remove dust and lint, allowing for repeated use. Practical Material: The brush features a soft silicone brush head and a plastic handle. The silicone head is lightweight, soft, and durable, with flexible bending and rebound properties that allow it to fit into spaces of various shapes. Suitable Size: Each cleaning brush measures approximately 4-1/8 inches (10.5 cm) in total length, including a 1-inch brush section, making it ideal for reaching deep, tight crevices in sewing machines. Practical Set: This set includes 4 silicone brush heads in different shapes, each with 5 pieces, for a total of 20 brushes. The variety and quantity provide long-term usability for various cleaning needs. Soft and Fine: The lightweight and soft brush head conforms to machine parts for effective cleaning without damaging delicate internal components, making it a safe cleaning tool. Light and Easy to Carry: Compact and lightweight design allows for easy portability. Suitable not only for sewing machines but also for cleaning various precision tools and parts. Color: As shown Material: Silicone Size: 4-1/8 inches (10.5 cm) Package Contents: 1 set of sewing machine cleaning brushes Note: Light reflection and differences in display screens may cause slight variations in color. Measurement may vary by +/- 1-3 cm.