Table 2.

Summary of the stylet product on the market

Device Name	Depth markings	Material and design structure	Visualization	Reusable or disposable	Featured Functions
Portex Stylet	No	High-density polyethylene outer sheath and an expandable aluminum coated with high-density polyethylene	No	Disposable	Conventional Rigid stylet
Truflex™ Stylet	No	Stainless steels	Conjunction with a laryngoscope	Reusable	Distal end allows leveraged movement
SEEKflex	No	Stainless steel core, PVC tubing, ABS resin fittings, handles	Conjunction with a laryngoscope	Disposable	Shapeable, retractable, removable, versatile, inexpensive, and features a bougie
Shikani Optical Stylet	No	Includes a fiber optic cable, extendable and angle adjustable distal end handle	Yes	Reusable	Optical stylet