The easiest planetary nebula to see with binoculars lies in the often-overlooked constellation of Vulpecula, midway between the bright stars Deneb and Altair. Its popular name, the Dumbbell Nebula, comes from its structure - more like a bow tie than a dumbbell - but this is visible only through a telescope. Like many nearby planetary nebulae, the Dumbbell contains knots. Its central region is marked by a pattern of dark and bright cusped knots and their associated dark tails. The knots vary in appearance from symmetric objects with tails to rather irregular tail-less objects. Similarly to the Helix Nebula and the Eskimo Nebula, the heads of the knots have bright cusps which are local photoionization fronts.