The DS-840 is a sturdy drum throne from Yamaha. Hardware is very important to any drummer; it is not the intention that certain tripods or the stool to fall over or collapse. It is therefore a good idea to invest in high-quality products from reliable companies. The DS-840 has a wide and stable threaded rod on which the seat sits, making it very easy and quick to adjust the height of the seat. However, this does not cause instability, and the seat will not slide. The height is adjustable between 46 and 65 centimetres. The bar is made of die-cast aluminium and the legs are double-braced. This ensures that the legs will not deform and that the stool can handle a lot of weight. In short, a very sturdy stool for the enthusiastic drummer!