Schacht branded stick shuttles. These have a smooth finish, though are not oiled or varnished. They are 1 1/2″ (38mm) wide.
Stick shuttles are the simplest and most versatile of all shuttles. Schacht produces them in in 9″, 10″, 12″, 16″, 20″, 24″ and 30″ lengths. Stick shuttles are easiest to use when they are slightly longer than the width of your warp.