These foam inserts have been designed to fit the A4 Really Useful Box (4L)
***After releasing these in June 2023 we have discovered that the US 4L boxes are a different size***
So there is now a choice of UK or US sizes to choose from:
UK: Internal dimensions of box are L348 x W220
USA: Internal dimensions are L317mm x W216mm (12.5" x 8.5")
Each insert has 96 slots which are the perfect size to hold the Pip & Chip 3mm acrylic bobbins, keeping them neat and organised.
There is also the option to select foam inserts for the standard thin bobbins (holds 102 bobbins)
Please note that this listing is for the FOAM ONLY and box, bobbins and thread are NOT included.