The package includes: 10 water flow restrictors with different flow specifications, distinguished by color. Includes 2 each of blue (1.5 GPM), yellow (1.8 GPM), green (2.0 GPM), white (2.5 GPM), and gray (3.0 GPM). Choose the desired specification to help conserve water based on your needs. The quantity provided supports various applications. Quality material: Made from high-quality POM material, these shower flow restrictors are durable and stable for long-term use. Resistant to breakage and damage. Operates effectively within a temperature range of 090C, making it suitable for most household showers. Easy and practical to use: Simple to install and remove in minutes. Helps regulate water flow to support water and energy savings. Application: Designed for fixed or handheld shower heads with an aperture of 14.3 mm (0.566 inch). Can also be used in other devices requiring flow limitation, offering broad everyday utility. Size details: Each restrictor measures 14.3 x 13.85 x 5.2 mm. Compact design fits standard shower heads. Note that compatibility may vary depending on specific shower head dimensions. Small size allows for easy storage and portability. Size: 14.3 x 13.85 x 5.2 mm Material: POM Color: Multicolor Package Contents: 10 x Water Flow Restrictor (Blue 1.5 GPM, Yellow 1.8 GPM, Green 2.0 GPM, White 2.5 GPM, Gray 3.0 GPM 2 of each) Only the items listed above are included.