Crop needles and feeding tubes from Kimani Handfeeding Supplies. Choose from straight or curved stainless steel needles from 18g to 8g. We also stock silicon and Teflon feeding tubes ideal for hand-feeding neonates. Tubes allow more and thicker formula through them than crop needles, and silicon is so soft and flexible that it can’t damage the sensitive lining of the oesophagus or puncture the lining of the crop. Our tubes vary in dimension from 2.5mm OD up to 5mm OD and come in 50mm and 100mm lengths. Teflon is available up to 150mm. Both silicon and Teflon tubes can be boiled for sterilisation purposes.