It’s a 0.75L “really useful box”. I bought a pack of 8 from Amazon. Dimensions 19.5L x 13.5W x 5.5H cm

I’m ridiculously pleased with this! I’ve been looking for something to to store my hexis in for ages and everything was just a tiny bit too small or much too big. These are literally perfect!

Just needed to share my joy ❤️