Technical data: Material: Syringe PS, needles 304 stainless steel, gasket silicone. Scale: 30 ml / 1 oz. Needle length: 7.3 cm. Cleaning Brush Length: 16.5 cm. Box contents: 1 x plastic roasting syringe. 2 x needles. 1 x cleaning brush. 3 x seal. Leak Proof Mechanism Screw-On Needles provides easy replacement as per the marination type. It comes with 3 Silicone O-Rings that helps in leak-proof injection into different types of meat. Lightweight compact design and easy to carry anywhere. Ergonomic Handle Handle made up of premium plastic has a perfect grip design for one-hand use. It can be screwed off for washing purposes too. Measurement Scales 1-Oz Injector barrel has two measurement scales so you can get the right amount of juice into your BBQ. Stainless Steel Needles Comes with two 3" small hole and 3" angled cut clog-resistant needles. Needles come with safety caps. How to use: Step 1: Clean and lubricate the cooking oil before use. Step 2: Load marinades in the syringe Step 3: Remove the air from the syringe Step 4: Insert the needle into the meat and press marinades to the meat.