Enjoying a tidier garden is a simple with a grass trimmer. If you have a garden overgrown with weeds or grass, a trimmer is a simple and easy solution for restoring order to your green space. The main function of a grass trimmer is to cut those areas a lawnmower can't. For instance, they can be used as an edge trimmer to tidy up the edges of a lawn, or under a hedge and along a fence. You can choose from two main types of grass trimmer – a string trimmer and a bladed trimmer. The string trimmer, or strimmer, uses flexible monofilament as a cutting tool rather than a blade. It is designed to cut through light grass and isn’t suitable for thick foliage. A grass trimmer with blades is usually made of plastic or metal. Metal and plastic strimmer blades can withstand more punishment than monofilament, and the blades are therefore more expensive. When buying a trimmer, remember that the blades are designed to break on contact with hard surfaces such as fences and garden furniture and replacing them might be pricey.