1. Durable and durable. The compressed pneumatic push-in connector is equipped with a practical one-key unlocking button, and the hose can be connected quickly and easily without special tools.2. Easy to use. Pneumatic quick couplings are easy to install, easy to install pneumatically, and easy to push under pressure to connect the pipes, and a firm connection without additional sealing.3. Widely used. Used to connect polyethylene, nylon and PU pipes. Mainly used for quick connection of pipelines, pneumatic tools, pipeline connection or separation without tools. High pressure , can withstand strong pressure without tripping, so there is no need to trip, and it can work for a long time.Colour:Blue+blackMaterial:plasticPackage Contents:30 * two-way connectors12 * three-way plugs7 * four-way plugsOnly the above package content, other products are not included.Note: Light 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.