The International Laser Class sailboat, also called Laser Standard and the Laser One is a popular one-design class of small sailing dinghy. According the Laser Class Rules the boat may be sailed by either one or two people, though it is rarely sailed by two. The design, by Bruce Kirby, emphasizes simplicity and performance. The dinghy is now manufactured by several boat manufacturers worldwide.
The Laser is one of the most popular single-handed dinghies in the world. By 2010, the number of boats produced was approaching 200,000. A commonly cited reason for its popularity is that it is robust, simple to rig and sail. The Laser also provides very competitive racing due to the very tight class association controls which eliminate differences in hull, sails and equipment.
Read more in the Wikipedia article on the Laser Class sailboat.