The Folding Pruning Saw from Burgon & Ball in the UK has been endorsed by the Royal Horticultural Society. It's a high quality razor tooth saw forged from tempered, high carbon steel. Each tooth has three cutting surfaces, and it is designed to be most effective on the pulling stroke. A lock release button on the back is conveniently placed at thumb level so the fearsome blade can be tucked safely inside the ergonomic plastic handle. The folded saw is 19.5cm (7 3/4") long.