Smooth-On Flex Foam-It! 3 Pourable Flexible Foam Trial Unit by Smooth-On, Inc. : Amazon.co.uk: DIY & Tools
1 INCH Upholstery Foam Cushions High Density Seat Pad Replacement
Wheatley Everyday - 3" Foam Boxes – Richard Wheatley Ltd.
Airtex 3" High Density Foam Sheet | JOANN United Kingdom
Foamma 3" x 20" x 20" High Density Upholstery Foam Padding, Thick-Custom Pillow, Chair, and Couch Cushion Replacement Foam, Craft Foam Upholstery Supplies, Foam Pad for Cushions and Seat Repair : Amazon.co.uk:
Farecla GMC312 3 GMOP Yellow Compounding Foam Pack 5 Includes Hook&Loop system