Package Content: includes 4 male dust caps and 4 female dust caps, these hydraulic plugs cater to various needs and applications, allowing for versatile usage that can accommodate different hydraulic couplers Heavy Duty Material and Color: manufactured with plastic material, these hydraulic dust caps are built to last; They are designed in an eye catching color, making them easily identifiable even in a cluttered workspace Maintain Cleanliness of Couplers: this hydraulic plug kit plays an important role in keeping your couplers clean; By covering the open areas, can prevent the build up of dust and debris that could hamper the performance of your equipment Suitable Size for Your Need: designed to fit 1/2 inches hydraulic couplers, this tool dust cap allows for a secure decoration to ensure protection, and allows for wide applications in various fields, to give you a convenient and simple experience Protection for Longevity: the main function of these hydraulic plugs is to protect your hydraulic couplers from external elements; Whether it's wind, water, dust, or debris, these caps and plugs provide protection, enhancing the lifespan and effectiveness of your couplers Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:plastic Package Contents: 4 x male dust caps 4 x female dust caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.