【A Rewarding Set】The package includes 8 boxes of black pencil refills, totaling 48 pieces. These refills provide clear and precise markings for various tasks, helping improve efficiency in carpentry and construction work. Compatible with most standard carpenter pencils. 【Waterproof Material】Made from high-quality graphite, these pencil leads offer high hardness and stability. They are resistant to moisture and water, ensuring markings remain intact even in wet conditions. 【Precise Marking】With a diameter of 2.8 mm and a length of 120 mm, these refills are ideal for reaching tight spaces and deep holes where other marking tools may not fit. 【Universal Construction Pencil】Suitable for woodworking, construction, and artistic applications. The included storage boxes make organization easy. A practical gift option for family or friends.