For race organizers · events · schools

Race-bib safety pins by the box

Races use size-2 pins (38 mm), four per runner. Boxes of 864, counted not weighed, tax invoice available, nationwide shipping.

Size 2 — race standard Tax invoice & quotation Ships nationwide

Calculate what you need

Enter your headcount — 4 pins per runner plus a 10% buffer

Order for your race in 3 steps

1Tell us headcount + race date

LINE us the headcount and date — we size the order with a buffer.

2Get your quotation

Box pricing with shipping — quotation and tax invoice in your organizer name.

3Delivered before race day

Ships from Sampheng stock — 3–7 days lead time (2 weeks for big events).

Why races settle on size 2

Size 2 — 38 mm on 0.90 mm wire — is the balance races everywhere land on. Long enough to pass through the bib and two layers of technical fabric and still close comfortably, short enough that no spare point swings against the runner. Size 1 (32 mm) struggles with thicker fabric and works loose; size 3 (46 mm) leaves a bigger hole and lets the bib flap.

Getting stock in before bib pickup

Bibs usually go out one or two days before race day, and pins are the last thing anyone remembers. Order at least a week ahead — large quantities may wait on a production run — and add ten percent for pins lost while stuffing race packs and runners asking at the desk. For an annual event, buy ahead: pins do not expire and keep for years in a dry place.

Why organizers order from us

Counted, not weighed

Weighed boxes can be ±50 pins off — events can't run short, so we count.

Sampheng wholesale pricing

Thousands of pins at direct box rates — no middlemen.

Full paperwork for organizations

Quotations and tax invoices for companies, agencies, and schools.

Organizer FAQ

Which size, and how many per runner?
Size 2 (38 mm), four per runner — one per bib corner. See the size-2 page for full specs.
How many boxes for 1,000 runners?
1,000 × 4 = 4,000 pins ≈ 5 boxes of 864 — plus a 5–10% buffer for race-day losses.
How much lead time?
We ship from stock — 3–7 days is usually fine; allow 2 weeks for large events.
Can you invoice our organization?
Yes — companies, organizers, agencies, and schools. Send your tax details in the LINE chat.

Beyond races, we stock every size 000–7 — see all safety pins

Tell us the runner count — we'll quote

Give us the head count and event date — we work out boxes plus spares and quote wholesale with shipping on LINE.

Ask on LINE