Set of Blood test tubes or plastic empty test tubes different types with colored caps

Related tags:

• test tube
• flask
• blood tube
• lab test
• chemistry lab
• biochemistry
• laboratory
• lab
• chemistry
• medical research
• blood sample
• medical test
• pharmaceutical
• researcher
• blood type
• tube
• sample
• blood test
• plastic
• plasma
• blood
• set
• 16+