Rectangle block
50 x 50 x 80 mm
The classic portrait block in the standard 50 x 50 x 80 mm size used for xTool F2 Ultra UV inner engraving.
$18.00
For xTool F2 Ultra UV and other inner engraving lasers
Premium K9 crystal blanks for inner engraving.
Premium blank K9 crystal blocks, cubes and keyrings for 3D inner engraving on the xTool F2 Ultra UV and other UV or green crystal lasers. Polished on every face. Mix and match: 10 % off 5 or more, 20 % off 10 or more.
MaterialPremium K9
Finish6 faces polished
Blocks & cubesGift boxed
DeliveryTracked
5+ items10 % off
10+ items20 % off
Blocks & cubes.
Premium clear K9 blanks in the standard inner engraving sizes, each in a satin-lined gift box.
Premium keyrings plain or with LED.
Small crystals with a chrome cap, chain and split ring. The LED versions light the engraving from the cap.
LEDRectangle keyring with LED
20 x 30 x 15 mm
A small crystal that lights up: the LED in the cap shines down through the engraving.
$6.59
$5.00
LEDHeart keyring with LED
30 x 30 x 10 mm
A heart with a faceted edge that catches the light, and an LED cap that lights the engraving.
$6.59
$5.00
Premium blanks made for inner engraving.
Clear glass
Premium optical K9, no tint
K9 optical crystal is very clear and has no colour cast, so the white laser dots of a 3D portrait stay crisp from every side.
Sized for your machine
Standard inner engraving sizes
The 50 x 50 x 80 mm block is the same size as xTool's own F2 Ultra UV rectangle crystal, and the 50 and 60 mm cubes suit desktop UV and green lasers, so your settings carry over.
Ready to sell
Premium gift box included
Blocks and cubes arrive in a black satin-lined gift box, so an engraved crystal can go straight to your customer.
Buy more, pay less.
10%off 5 or more items
20%off 10 or more items
Tracked delivery
| United Kingdom | from $9.50 |
| Europe (EU) | from $16.00 |
| USA | from $20.50 |
| Rest of world | from $26.50 |
Shipping is worked out from the parcel weight and the country, and shown in the cart before you pay. Parcels that cross a border may pay import duty or tax on delivery. Over 5 kg? Ask us for a quote.
Questions about the crystals.
What is K9 crystal?
K9 is a clear optical glass (a borosilicate crown glass). It is the standard material for photo-crystal gifts: it is very clear, has no coloured tint, and takes laser inner engraving well, at a lower price than higher-grade optical crystal.
Do these crystals work with the xTool F2 Ultra UV?
They are made for it. They are K9 crystal, the glass used for inner engraving, in standard sizes: the 50 x 50 x 80 mm block is the same size as xTool's own rectangle crystal. Engrave them with the F2 Ultra UV's inner engraving mode.
Which lasers can inner engrave these blanks?
UV desktop lasers with an inner engraving mode, such as the xTool F2 Ultra UV, and green 532 nm crystal lasers. Both mark tiny dots inside the glass. Ordinary CO2 and diode lasers can only mark the surface.
How is shipping worked out?
Every order is sent by tracked post. The price depends on the parcel weight and the country, and you see it in the cart before you pay. UK delivery starts at $9.50.
How does the volume discount work?
Buy 5 or more items and you save 10 %, or 10 or more and you save 20 %. You can mix and match any crystals and keyrings. The discount applies to the crystals, not to shipping.
Do the crystals come in a gift box?
Yes. Blocks and cubes come in a black gift box with a satin lining, ready to give.
How do I pay?
From your dotte.ai balance. Top it up with PayPal and your cart is kept while you do.
Can I make the 3D engraving file here too?
Yes. dotte.ai turns a customer photo into a 3D point-cloud file fitted to these crystal sizes: PLY for xTool Studio (beta) or DXF / CAD for green 532 nm machines. New accounts get free credit to try it.
Will I pay import duty?
If your parcel crosses a border, your country may charge import duty or tax on delivery.
Can I order more than 5 kg, or wholesale?
Yes. Contact us with what you need and we will send a quote for the goods and shipping.
Got the crystal? Make the 3D file.
dotte.ai turns a customer photo into a 3D point cloud fitted to these crystals, with PLY files for xTool Studio (beta).