Family owned since 1952
Seron Mfg. Co.
American-made eyeglass holders, P-38 plastic whistles, lanyards, and safety accessories for work, sport, school, and industrial programs.
Built for practical safety programs
Products that stay useful because they stay simple.
Seron Mfg. Co. products are made for the critical moments when high quality safety equipment has to do its job without fail: glasses must stay on, lanyards must stay secure, and whistles must sound loud and clear every time—with the convenience of wearing what you need comfortably around your neck.
Available in a wide variety of colors and styles, Seron products stay right where you need them and remain clean and durable even in the most demanding environments. Our core products are as dependable now as they've been for the last 74 years—and will always continue to be.
Founded by Dr. Suren M. Seron in 1952, the company carries forward more than a century of Seron family ingenuity through patented, practical American-made products serving customers locally, nationally, and worldwide.
Read the company storyPatented product lineage
The same practical ideas, still made in the U.S.A.
Seron Mfg. Co. products have a real patent and trademark trail behind them, from the 1958 Spectacle Holder to later whistle, lanyard, breakaway, and cord designs. The point was never novelty for its own sake. It was practical gear that worked then and still earns its place now because the materials, fit, sound, and assembly are not treated like corners to cut.
See our patent and trademark historyProduct families
American-made eyeglass holders, whistles and lanyards.
Eyewear Retention
Glass-Gard Eyeglass Holder
The original adjustable Glass-Gard eyeglass holder with patented Positive Grip Tips.
- Patented Positive Grip Tips fit thin wire through wide plastic temples
- Fully adjustable band fits children and adults
- Non-elastic construction will not stretch
The Class Cord
Glass-Gard Eyeglass Lanyard
A 28-inch nylon cord eyeglass holder with adjustable Positive Grip Tips.
- Standard 28-inch stock size; custom longer or shorter lengths available
- Long-wearing 1/8-inch durable nylon cord
- Fully adjustable Positive Grip Tips stay in place
High-Decibel Sound
Model P-38 Plastic Whistle
A bright, shatterproof ABS plastic referee-style whistle used by officials, coaches, teachers, trainers, and safety teams.
- High-impact shatterproof ABS plastic body
- Ultrasonically welded construction
- Specially designed cork ball from Portugal
Corded Safety Signal
P-38 Whistle With Cord
The P-38 whistle paired with polypropylene marine cord for high-noise areas, confined spaces, and ready access.
- Official referee-style plastic whistle
- High-impact shatterproof ABS plastic body
- Ultrasonically welded construction
P-38 Whistle Color Combinations
Sixteen body colors.Sixteen cap colors.256 ways to make it yours.
Choose from 16 P-38 whistle body colors and 16 cap colors, then mix or match them into 256 body-and-cap combinations. Solid-color whistles, bright two-tone pairings, neon options, and custom-imprinted caps are available.
Where the company fits
Useful for safety, sports, schools, healthcare, and distributors.
Public product disclosures
Product-innovation artwork published as a public record.
These drawings and product sheets document concepts being considered for future Seron Mfg. Co. product innovations. The company publishes them as dated public disclosures and potential prior-art references while also documenting the associated branding and original artwork for patent, trademark, and copyright review.
Direct ordering
Call or email us for pricing, availability, samples, and custom orders.
Many stock products are available in any quantity and any color. Custom imprinted caps, printed cord, and program-specific orders can be quoted directly.























