As a physicist, my scientific calculator is never far away. I've had a few different ones over the years, so in this design I've included my favourite features of each one to make a super calculator! It comes personalised with your name in the top left-hand corner if desired (up to 9 characters). All my items are beautifully finished and are 100% designed and hand made in my solar powered French studio. Approximate sizes: Height: 6cm (2 1/4in) Width: 3cm (1 1/8in) Depth: 0.4cm (1/8in) Materials: Cherry wood vaneer & metal pin badge back Please note that the grain of the wood varies between pieces and sometime features knots etc., so your piece will be one of a kind. Care instructions: This product is made from wood, so make sure it stays dry and out of direct sunlight.