Cookie notice
What they are
Cookies are small files the site stores in your browser. Some are necessary for the store to work (buying, paying, viewing your purchase) and others measure and improve our ads.
Consent
For visitors in the European Union, analytics and advertising cookies (Meta Pixel and Microsoft Clarity) are only activated after you accept them in the banner, which offers “Accept” and “Reject” with equal prominence (art. 5(3) Directive 2002/58/EC). You can change your choice at any time from Cookie settings.
Cookies we use
| Cookie | By | Purpose | Duration | Type |
|---|---|---|---|---|
ck_v | The General Class Sketchbook | identify the shopping session (checkout, abuse prevention, live buyers count) | 60 days | Necessary |
tp_ord_* | The General Class Sketchbook | show the order's thank-you page and My purchases | 7 days | Necessary |
tp_rec | The General Class Sketchbook | restore the cart from an email link | 48 hours | Necessary |
tp_consent / tp_cookie_notice | The General Class Sketchbook | remember the cookie choice | 180 days | Necessary |
pais | The General Class Sketchbook | country chosen to show prices (testing only) | 30 days | Necessary |
__stripe_mid, __stripe_sid | Stripe | secure payment and fraud prevention at checkout | 1 year / 30 minutes | Necessary |
tp_utm | The General Class Sketchbook | attribute the purchase to its campaign (utm, fbclid) | 30 days | Advertising (consent in the EU) |
_fbp, _fbc | Meta | measure purchases coming from Meta ads | 90 days | Advertising (consent in the EU) |
fr (y otras de facebook.com) | Meta | Meta advertising | 90 days | Advertising (consent in the EU) |
The browser's localStorage also keeps marks to avoid sending the same purchase event to Meta twice.
How to delete them
Besides the banner, you can delete or block them from your browser settings. Blocking the necessary ones may prevent purchasing.
Last updated: 2026-10-21