# Happy 21st Birthday Necklace and Card

> A 21st birthday necklace with a silver key charm, a 16 or 18 inch chain and a card for a girl turning 21.

- Shop: Your Personalised Gifts (yourpersonalisedgifts.co.uk), a UK personalised gift shop
- Price: 16 inch £23.49, 18 inch £23.49
- Availability: in stock
- Delivery: Dispatched in 1–3 working days · Royal Mail Tracked 24, 1–2 working days. Made to order and posted separately: £3.95 delivery, free over £80.
- Returns: 14 days from delivery
- URL: https://yourpersonalisedgifts.co.uk/products/happy-21st-birthday-necklace-gift-card
- Details checked against the supplier's specification: 2026-10-15

## About this item

Turning 21 is a big day, and this 21st birthday necklace marks it with a silver key charm and a Happy 21st Birthday card. It suits a daughter, a best friend, a sister or a niece on her 21st.

The chain is sterling silver, 16 or 18 inch: the 16" option has a 16 inch chain, the 18" option an 18 inch chain. The key charm is 15 mm Tibetan silver with an antique finish. It is letter box friendly: it fits through a standard size letter box.

The card reads Happy 21st Birthday, have a wonderful day, and has space for a little note or can be left blank. Pick 16" or 18" and mark her 21st birthday with a key charm she can wear.

## Key facts

- Silver key charm, 15 mm
- Sterling silver chain, 16 or 18 inch
- Happy 21st Birthday message card
- Space for a note, or leave it blank
- Fits through a standard size letter box

## What's in the box

- Necklace with a silver key charm, in your chosen length
- Happy 21st Birthday message card

## Details

| | |
|---|---|
| Length | 16" or 18" chain, as you choose |
| Material | Chain: sterling silver. Key charm: Tibetan silver with an antique finish |
| Charm size | 15 mm key charm |
| Card | Reads "Happy 21st Birthday, have a wonderful day", with space for a note or left blank |
| Fit | Letter box friendly, fits through a standard size letter box |

## Questions

### How long is the chain?

It is 16 inch on the 16" option and 18 inch on the 18" option. Pick the length you want when you choose.

### Does it fit through a letter box?

Yes, it is letter box friendly and fits through a standard size letter box.

### Can you write a message on the card?

The card has space for a short note, or you can leave it blank. The printed message reads Happy 21st Birthday, have a wonderful day.