Our stickers are made from high-quality removable vinyl designed for smooth, tempered glass panels. They’re printed and cut to order and meant for indoor use on PC cases and similar glass/flat surfaces.

Yes – each sticker is made to match the panel size you provide.
You’ll be asked to enter your panel dimensions on the product page before adding the sticker to your cart:

Front panel: width × height

Side panel: width × height

Please measure as accurately as possible, including decimals (e.g. 35.6 cm or 14.2 in). If your case is slightly different, you can trim small overhangs along the glass edge after application.

Remove the glass panel from your case, if possible.

Clean the surface thoroughly (dust- and grease-free, completely dry).

Peel the backing slowly and position the sticker on the glass.

Starting from the center, smooth it out with a squeegee or a bank card to push out any air bubbles.

If there’s a small overhang, carefully trim along the glass edge with a sharp craft knife (not included).

Take your time – a calm, slow application gives the best result.

Gently lift one corner with your fingernail and slowly peel the sticker back at a low angle. If it feels a bit tight, you can slightly warm the surface with your hand or a low-heat hair dryer to soften the adhesive.
On smooth tempered glass, the sticker should come off in one piece without leaving heavy residue. Any light residue can usually be removed with glass cleaner.

Our stickers are designed for smooth, tempered glass panels and similar non-porous surfaces. On these surfaces they are not expected to cause damage.
However, we can’t guarantee compatibility with every material or coating. If you’re unsure (special coatings, very old cases, custom paint), test a small area first or contact us before ordering.

No. Once applied and removed, the sticker cannot be reused. The vinyl and adhesive are designed for a clean, one-time application, not for repositioning across multiple surfaces.

Used indoors on a PC case, the vinyl is made to last for a long time under normal use – it won’t just peel off on its own. Direct sunlight, high heat or frequent touching can shorten the lifetime, but for typical desk setups you can expect the design to stay looking good for years.

For size: yes. All case stickers are made according to the measurements you provide.
For custom artwork or personalised designs, please email us at info@kumonook.com with your idea and some details. We’ll let you know what’s possible and provide a quote.

We can’t offer refunds or free replacements for stickers that are damaged during application (for example through tearing, heavy creasing, misalignment or cutting errors), especially for international orders with high shipping costs.
However, we always want you to feel good about your order – if something goes wrong, email us at info@kumonook.com with your order number and a short description (and photos if possible). We’ll review it case by case and let you know what we can offer (e.g. a discounted replacement or a coupon for a future order).

Yes, we ship from Germany to many countries worldwide.
Shipping costs and delivery estimates are shown at checkout. You can find more details in our Shipping Policy.