Refine your roast with aromatic herbs marinades stocks or juices the larger needle is more suited for thicker fillings such as ground herbs and marinades while the smaller needle is best for thinner fluids such as stocks or juices use just insert the needle deep into the meat and inject in the flavour features creates tender succulent and flavourful meat rust proof dishwasher safe material stainless steel and sturdy plastic measurement length 25 cm tip remove excess fat