Preferably use a blunt needle when embroidering. You don't just prick your own finger with a blunt needle, it's handy right? You will not damage the threads of the fabric or earlier either, because you push the threads to the side instead of puncturing them.
Size 24-26 needles are really thin needles, with thin needles you can embroider very fine woven fabric.
Shipping costs NL&BE: €4.95 & Free shipping when you spend €50
Shipping costs DE: €6.95 & Free shipping when you spend €100.
(for orders under €10, shipping costs are €7.95 (BE €9.95))