https://en.gongdong.com/products/micro-blood-collection-tubes/ Micro Blood Collection Tubes Skirted tube with false bottom to make a full-size blood collection tube, with dimensions as 13 X 75mm; Compatible with automated hematology analyzers without the need for a tube adapter. Used for pediatric & finger-prick blood sample collections. Description of Microcollection Tubes 01 Ultrasonically sprayed additives for different clinical lab tests. 02 Precision molded snap cap maintains a tight seal during procedures and allows to open by single hand. They are available in bright attractive colors for sample identification purposes.