Working in conjunction with Barry Read, Jack Holt developed the slot and glue method of constructing Miracles, which enabled some boats to be built from kits even by inexperienced amateurs.
The Miracle is a forgiving and versatile sailing dinghy, ideal for beginners or experts, children and adults alike.
The Miracle was supplied initially as a plywood kit and designed for home building, based on the slot and glue method of construction.
Build quality of the commercially built craft was reportedly very good, and is supported by the fact that many older examples have survived.
In the early 1990s, a composite version of the Miracle was developed, made from a combination of a glass-reinforced plastic (GRP) hull and wooden deck.