Syringe measurement range: 20ml, stainless steel gavage tubes are not for injection. For breeding only。 Ideal for hand feeding sick chicks or birds and for emergency treatment. Easy to use. Sustainable use. Easy to disassemble and clean. Curved reusable stainless steel gavage tubes can be sterilized for feeding young or unhealthy puppies, kittens and other baby animals. Syringe calibrations are large and easy to read. Precision becomes transparent. The curved stainless steel hoses are large and long enough for most applications. Package included: 1pcs 20ml syringe, 1pcs 8G, 1pcs 10G, 1pcs 12G, 1pcs 14G, 1pcs 16G, 1pcs 18G curved tubes, all in one pouch. yringe Material: Plastic + stainless steel Feeding tubes material: stainless steel Syringe capacity: 20 ml or 50 ml Size of feeding tubes: (6 models) 18 G: (tube length: approx. 50mm + 20mm / head diameter: approx. 3mm), curved, for waxbills and other small birds 16 G: (tube length: approx. 55mm + 25mm / head diameter: approx. 4.5mm),