Features: Galvanized material, not easy to deform, easy to install, easy to use, and widely used. Can be home decoration baseboard and solid wood furniture fasteners. No trace installation, no patch points, beautiful installation effect. Casting made of solid material, the service life is longer. Please note: only 3.5x0.8mm Seamless Nails contain expansion tubes! Package Includes: 50x Baseboard Seamless Nails Specifications: Material: Galvanized Size: 1.5x0.8cm, 2.5x0.8cm, 3.5x0.8cm Length: 1.5cm/2.5cm/3.5cm note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3.1.5cm and 2.5cm only have nails, 3.5cm includes expansion tube and nails. (1.5cm and 2.5cm are shorter, and the expansion tube can be installed without using it)