Hands unboxing a cardboard set with two glass spray bottles and a small pink Släppa box attached to the divider

Hands placing blue patterned tin and gift box into a custom cardboard insert inside a shipping box

A bright green Quinta product box with floral graphics resting inside a shipping package

An open dark green gift box on a leather chair displaying five Sord men's skincare products in custom slots

Custom Mailer Box Inserts

Cardboard box inserts designed to cushion your products inside a mailer box, creating one, two, or three compartments. Compatible with F23, F33, F44, F45, F52, F56, F62, F65, F71, F79, & F93 mailer box sizes.

Made in the EU
Great value for money
Loyalty program

€75 off for every €500 spent, save up to €300

Save €75 for every €500 spent and keep saving with each threshold, up to €300 in total.

Code:PACKFALL2026

€75 off for every €500 spent, save up to €300

Save €75 for every €500 spent and keep saving with each threshold, up to €300 in total.

Code:PACKFALL2026

Plain Mailer Box

Plain Mailer Box with Custom Sleeve

Bulk orders

Learn more

net / 240 pieces

Sample packs

Related products

Plain Mailer Box
Min. 30 pieces

net / 240 pieces

Data for current product configuration	Custom Mailer Box InsertsInlay for F23 Mailer Box
Material	Corrugated cardboard
Material colour	Brown
Shape	Custom Cutout Insert
Print colour mode	No print
Raw material	Paper
Eco properties	Made in Europe Recyclable Biodegradable Plastic-free
Variant SKU	ph-665-15593

BrownThe product is available in brown.
White - BrownThis product comes in white and brown.

Rectangular Cutout InsertAn insert made of cardboard with a rectangular cutout.
Divider InsertAn insert made of cardboard dividing the package into two compartments.
Custom Cutout InsertAn insert made of cardboard with a cutout for a product of any shape.
Two-Tier Custom Cutout InsertA two-stage cardboard insert with a cutout for a product of any shape.

No printThis product has no print.
Multicolour - CMYKCMYK printing uses four inks (cyan, magenta, yellow, and black) to produce a wide range of colors, making it ideal for colorful and detailed designs.
One ColourPrinting with a single CMYK color keeps costs low and is perfect for minimalist designs or when multi-color detail isn’t needed.

Protect your products during transit

Custom Mailer Box Inserts are designed to provide a secure fit for items within a mailer box, preventing movement and potential damage during shipping. Made from corrugated cardboard, these inserts add an extra layer of cushioning and stability. They are particularly useful for e-commerce businesses that ship fragile or multiple items in a single package, ensuring products arrive in excellent condition. These inserts are compatible with a wide range of mailer box sizes, including F23, F33, F44, F45, F52, F56, F62, F65, F71, F79, and F93.

Choose the right insert for your needs

Whether you need to hold a single item in place or separate multiple products, there’s an insert style to match. Options include rectangular cutout inserts, divider inserts, custom cutout inserts, and two-tier custom cutout inserts. This variety allows you to create specific compartments or a snug fit, reducing the need for additional void fill.

Available in brown or white cardboard

Our mailer box inserts are available in brown corrugated cardboard or white-brown, allowing you to match your existing packaging aesthetic or create a contrasting look. These material colors provide a clean, professional appearance inside your boxes.

Customise with your brand's design

Add your brand’s personality to the inside of your packaging. Custom Mailer Box Inserts can be ordered without print, with a single color print, or with multicolour CMYK printing. This allows for logos, patterns, or messages to be displayed directly on the insert, enhancing the unboxing experience and reinforcing brand identity.