How many times have we tried to learn the periodic table for our chemistry exams? If you want to make a gift to that teacher who has insisted so many times on this lesson, we can't think of a more appropriate gift than this personalised key ring. Thrill him or her with a detail made especially for this occasion! Thanks to this wooden key ring with a periodic table design the best teacher in the world will always be able to think positive! You'll turn him or her into a real proton thanks to this great gift, made of wood and measuring 8.5 centimetres in length. It will help them find their house keys every day - and it will bring a smile to their face! Carbon, nitrogen, gold, lithium? Who doesn't recognise all these chemical elements? This original end-of-term gift will remind the teacher of all those lessons we have worked so hard to learn. Once you add the number of key rings you want to the cart, you can personalise them by entering the personalisation area and clicking on the text box, write your name or the dedication you want! Measurements: 8,5 x 3 centimetres Material: wood.