1) spike: with wings; with airvent;
2) burette: 100ml, 120ml, 150ml;
3) floating valve: with or without; rubber or silicone;
4) drip chamber: with filter; 1ml=60drops;
5) PVC tube: 150cm, 180cm, etc; transparent, frosted; DEHP free for choice;
6) flow regulator: PE, PP, ABS; 5cm, 5.2cm, 6.4cm, etc;
7) injection site: Y site, injection bulb; latex free for choice;
8) connector cone: luer lock;
9) needle: with or without scalp vein set, etc