Since Whiskerful products are handmade by me, Linh.

Processing times depend on the product type:

• Delivered instantly via email after purchase.
• Ship within 1–2 business days. Stickers ship via stamps (U.S. domestic = USPS First-Class letter, International = International stamp). This means no tracking is provided, but customers have had no issues in the past. Free shipping applies to sticker-only orders in USA. 
• Made-to-order with care. Please allow 1–2 weeks for production before shipping depending on the number of orders in line before yours (Monday through Friday, not including holidays).

More details please visit Shipping Policy FAQ