Your instrument and bow. Advice from the tutor on buying an instrument/bow and books will be given during the first class. Advice on where you can get your instrument: visit a music shop and enquire about prices and quality; it all depends on the budget you have. If you prefer buying online, then these two sites could be helpful (the only thing to watch for is that the violin should be 4/4 size, which is the size for adults), just read the descriptions what level each model is made for. When buying online, a professional set-up in a violin shop still could be needed, as well. https://www.gear4music.com/orchestral/string-instruments/violins/full-size https://www.thomann.de/gb/violins_and_violas.html?sw=Violin&smuuid=f976b243-581d-43b1-9417-5b091af6a509 Advice can be given with the choice and purchase of a shoulder rest and accessories.