Specification: Fit for:3528 LED Strip Light Width Fitting:8mm Total Size:12 x 10 x 6mm/0.47 x 0.39 x 0.24inch(L*W*H) Thickness:1mm/0.04inch Inside Length:10mm/0.39inch Package Content:50 x Silicone Plug Description: 8mm silicone end cap cover for 3528 LED Tube Strip Light. They are commonly used to re-seal and re-water resistance LED strips after cutting or resizing them.