What's in the box:

Oil/Dye Injector 30ML with 1/4 SAE R134a Manual Oil Booster A/C Tuner Injector (Standard)

Features:
100% Brand new and high quality,Low-side quick coupler adapter.
The injector comes with a 1/4 inch female SAE connector, that goes directly to the 1/4 inch SAE male system ports(lower side preferred). If you are working on a system with different port size, you may need to have an adapter to finish the job.
Perfect for Home Office AC and Car AC Oil and amp; Dye Injector R134A 1OZ Hand Turn Pump Oil Injection Car Auto A/C Adapter.
One shot may cure and save a sickened compressor caused by low oil.
Compatible with fluorescent dyes for leak monitoring, compatible with all oil types(POE, or mineral oil) Compatible with all refrigerant types.

Specifications:
Material: Steel, Brass, Rubber
Color: As shown in the picture
Flexible Hose Working Pressure (Max): 355-425Psi (24-29Bar)
Flexible Hose Working Pressure : Within 285Psi (20Bar)
Package size: 16.5*12*5.8cm
Package weight: 255g

Package list:
1 * Filler
1 * Fluid Tube
1 * Quick Joint