Get an answer for your exact model
When contacting UNDALO, include the product reference and intended market. A family-level answer does not establish the same specification for every variant.
Frequently asked questions
What products does this website cover?
This draft covers foil balloon numbers, letters, standing numbers, mini shapes, birthday messages and custom shape projects.
Is nominal size the same as inflated size?
No. Confirm the nominal label, flat dimensions and inflated dimensions separately. Use the agreed sample for a critical display fit.
Can every foil balloon float with helium?
Do not assume so. For UNDALO multicolor number balloons, 36, 38 and 40 inches are recommended for helium floating, while 16, 18 and 32 inches are not. This applies to the confirmed Nylon + PE and PET + PE options. All six sizes can be filled with air. Guidance for other families remains 【待确认】; the number-balloon indoor floating times are described separately.
Can I order custom shapes or print?
Send the shape, artwork, intended dimensions and quantity for a feasibility review. Available process, charges and timing are 【待确认】 for the project.
Can I use my own retail packaging?
Provide the pack artwork, contents, barcode files and carton requirements. Supported formats, MOQ and cost are 【待确认】.
Are character samples for sale?
The existing character reference is display-only and not for sale. Custom character projects require appropriate authorization.
Are certificates available?
Current certificate and report availability is 【待确认】. Ask for documents that match the legal entity, production site and selected product.
How long will the balloon remain inflated?
For the UNDALO multicolor number-balloon range: Under normal indoor use, UNDALO states that helium-filled PET + PE number balloons float continuously for 5 days and Nylon + PE number balloons for 7 days before gradually becoming less full and developing wrinkles. After this initial period, they can continue floating for approximately 2 more days with reduced fullness. These additional days are not presented as a full-looking display period. With air filling, both materials can remain inflated for 15 days or more. Detailed test conditions and size/thickness-specific test coverage remain 【待确认】. Other product families require separate confirmation.
What should I send for a quotation?
Send the product reference, dimensions, quantity per variant, artwork, inflation method, packaging, destination and required arrival date.
What is the minimum order quantity?
For UNDALO multicolor number balloons, in-stock standard colors require 50 pieces per size, per digit, per color. Custom orders require 3,000 pieces per size, per digit, per color. Confirm current stock at quotation. MOQ for other product families remains 【待确认】.
Can you confirm a delivery date?
For the multicolor number-balloon range: For in-stock standard-color number balloons in bulk with no custom packaging, dispatch is within 3 calendar days after receipt of the deposit. When custom individual packaging is required, dispatch takes 25 calendar days from receipt of the deposit and approval of the custom packaging sample, whichever happens later. Custom production orders normally dispatch in 35 calendar days, counted once both the deposit has been received and the pre-production sample has been approved (from whichever happens later). All three dispatch schedules use calendar days. These are dispatch lead times, not transit times or arrival dates. New single-color samples take 7 calendar days; new-shape or multicolor-pattern samples take 10 calendar days; custom packaging samples take 8 calendar days. The sampling start event remains 【待确认】. Lead times for other product families require separate confirmation.
How long does new sample preparation take?
New single-color samples take 7 calendar days. Samples for new shapes or multicolor patterns take 10 calendar days. Custom packaging samples take 8 calendar days. These are sample-making times, separate from production dispatch lead times after sample approval. The sampling start event remains 【待确认】.