The Schacht 15" boat shuttle is a good choice for a 45" or wider loom. It has an open bottom and comes in maple wood with an oil-rubbed finish. The ends of the shuttle taper to a tip with a slight curve upward, which helps keep the shuttle from catching threads on the lower part of the shed. This shuttle takes a 6" Schacht bobbin (not included).

Dimensions: 15" long; 2" wide; 1 1/4" high
Weight: 7 oz.