VERSATILE ADJUSTMENT - You can change its shape according to your needs, only need to change the tightness of the pencil holder and nut to achieve different shapes to complete the demand. It can be locked and fixed after each adjustment to ensure precision accuracy. HIGH QUALITY- It is made of high quality ABS and metal that can last the useful life of the product longer. And it has a durable construction that can be changed easily. COMPACT AND EASY TO USE - The size of the product is very small, the weight is also very light, you can put it directly in your pocket. Its unique design of shirt trouser belt clip makes it easy to carry and storage. WIDE APPLICATION- It is a multi-function tool with over 15 marking applications, including tiling and paving, stud walls, gables and paneling, in-fill panels, shop fitting and built in furniture.