• High-quality material: The clips are made of high-density aluminum alloy, corrosion-resistant, and high-strength stainless steel screws, ensuring durability. • Invisible fastening: The T-shaped pressure dowels allow for invisible fastening of WPC decking boards. • Versatile use: Ideal for outdoor DIY decks, bamboo wood floors, plastic wood floors, wood floors, and pineapple lattice floors. • Easy to use: The hidden aluminum alloy spacer clips are easy to install and convenient to carry. • Package contents: Each box contains 100 clips of 40 × 18 mm and 100 screws of 4 × 30 mm. The spacing of the clips is 6 mm and the diameter of the screw holes is 4.5 mm. • Measurements: Clips of 40 × 18 mm, screws of 4 × 30 mm, 6 mm spacing between clips, screw hole diameter of 4.5 mm.