will this work on a fabric car seat to cover a hole?

They adhere very well when using a heat press. As long as you have a good iron it should work.

Can this work on baseball hat material

These patches should work on any material that has a thickness to it. Fabrics like silk or Jersey are too thin for these patches. Hope this helps.

Can you use these patches on jeggings with 51% polyester?

These patches require a high heat in order to adhere to your fabric. You need to look at your begging label and see what it says about ironing

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ZEFFFKA Premium Quality Fabric Iron-on Patches Inside & Outside Strongest Glue 100% Cotton Black Repair Decorating Kit 12 Pieces Size 3" by 4-1/4" (7.5 cm x 10.5 cm)

Product ID: 80181182

Details

Brand
ZEFFFKA
Color
Black
Material
Cotton
Mounting Type
iron-on
Number of Items
12
Number of Pieces
12

🔥strongest hot-melt adhesive

🧵12 durable cotton patches

♻️machine washable & reusable

€ 19.32

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Patch it, flaunt it, never fear the tear!

PREMIUM EU MADE COTTON - 100% cotton front ensures breathable, natural fabric feel with a sleek black finish.
LONG LASTING DURABILITY - Withstands high-temp washing and tumble drying; re-iron up to 3 times for extended life.
SMART WARDROBE INVESTMENT - Prevent tears or cover holes on clothes, sheets, car seats, and more—saving money and style.
EFFORTLESS IRON ON APPLICATION - Fix or customize your wardrobe in just 60 seconds—no sewing required.
VERSATILE INSIDE OUTSIDE USE - Apply patches inside or outside garments for discreet repairs or bold style statements.

ZEFFFKA Premium Fabric Iron-on Patches offer 12 high-quality 100% cotton black patches (3" x 4.25") with the strongest hot-melt adhesive for quick, durable repairs or creative customization. Made in the EU, these machine-washable patches can be applied inside or outside garments using just an iron, lasting through multiple washes and reapplications to extend the life of your favorite clothes and textiles.

Specifications

ASIN	B07GYR235Z
Age Range Description	All Age Groups
Best Sellers Rank	#5,335 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #18 in Sewing Repair Patches
Brand Name	ZEFFFKA
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (9,986)
Manufacturer Part Number	MIX_29
Material Type	Cotton
Model Number	MIX_29
Mounting Type	iron-on
Number of Items	12
Number of Pieces	12
Product Style	Compact
Shape	Rectangular
Size	1-Pack
Unit Count	12.0 Count

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€ 19.32

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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